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Fun with Algebra 1: Solve Inequalities and Equations!

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Fun with Algebra 1: Solve Inequalities and Equations!
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Elle M

@ellem_soms

·

11 Followers

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A comprehensive guide to solving inequalities algebra 1 and systems of equations, covering essential methods including substitution and elimination, with detailed explanations of strict and non-strict inequalities, interval notation, and problem-solving strategies.

10/18/2023

462


<p>To solve an equation or inequality, the most straightforward method is to manipulate it until the variable is alone on one side and the

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Page 2: Solving Systems of Equations

This page covers two main methods for solving system of equations: substitution and elimination, providing detailed explanations of each approach.

Definition: Substitution method involves solving one equation for a variable and inserting that expression into the other equation to solve the system.

Highlight: When solving a system with two variables, the solution should be written as an ordered pair, following standard mathematical convention.

Example: The elimination method involves combining equations to create new equations with fewer variables, making the system easier to solve.

Vocabulary: Key terms for solving systems:

  • Substitution: replacing variables with equivalent expressions
  • Elimination: combining equations to remove variables

Quote: "When using elimination, look for the easiest variables to eliminate first."

Highlight: The elimination method is particularly effective for solving nonlinear equations, but should be used strategically rather than arbitrarily eliminating variables.


<p>To solve an equation or inequality, the most straightforward method is to manipulate it until the variable is alone on one side and the

View

Page 1: Understanding Inequalities and Their Properties

This page introduces fundamental concepts of solving inequalities algebra 1 and explains key notation systems. The isolation method is presented as the primary approach for solving both equations and inequalities.

Definition: Strict inequalities indicate that two sides cannot be equal, while non-strict inequalities allow the sides to be equal.

Example: When solving an equation like 5r-2=10-r, you can verify the solution by substituting it back into the original equation:

  • 6r-2=10
  • r=2

Highlight: When multiplying or dividing an inequality by a negative number, you must reverse the direction of the inequality sign - this is a crucial solving inequalities rule.

Vocabulary: Interval notation components:

  • () indicates values not included
  • [] indicates values are included
  • E represents "is in"
  • -∞ represents negative infinity
  • +∞ represents positive infinity
  • R represents all real numbers

Example: Interval notation examples:

  • TE[3,5) means 3≤t<5
  • TE(4,∞) means t>4

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SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying

Fun with Algebra 1: Solve Inequalities and Equations!

user profile picture

Elle M

@ellem_soms

·

11 Followers

Follow

A comprehensive guide to solving inequalities algebra 1 and systems of equations, covering essential methods including substitution and elimination, with detailed explanations of strict and non-strict inequalities, interval notation, and problem-solving strategies.

10/18/2023

462

 

8th

 

Arithmetic

77


<p>To solve an equation or inequality, the most straightforward method is to manipulate it until the variable is alone on one side and the

Page 2: Solving Systems of Equations

This page covers two main methods for solving system of equations: substitution and elimination, providing detailed explanations of each approach.

Definition: Substitution method involves solving one equation for a variable and inserting that expression into the other equation to solve the system.

Highlight: When solving a system with two variables, the solution should be written as an ordered pair, following standard mathematical convention.

Example: The elimination method involves combining equations to create new equations with fewer variables, making the system easier to solve.

Vocabulary: Key terms for solving systems:

  • Substitution: replacing variables with equivalent expressions
  • Elimination: combining equations to remove variables

Quote: "When using elimination, look for the easiest variables to eliminate first."

Highlight: The elimination method is particularly effective for solving nonlinear equations, but should be used strategically rather than arbitrarily eliminating variables.


<p>To solve an equation or inequality, the most straightforward method is to manipulate it until the variable is alone on one side and the

Page 1: Understanding Inequalities and Their Properties

This page introduces fundamental concepts of solving inequalities algebra 1 and explains key notation systems. The isolation method is presented as the primary approach for solving both equations and inequalities.

Definition: Strict inequalities indicate that two sides cannot be equal, while non-strict inequalities allow the sides to be equal.

Example: When solving an equation like 5r-2=10-r, you can verify the solution by substituting it back into the original equation:

  • 6r-2=10
  • r=2

Highlight: When multiplying or dividing an inequality by a negative number, you must reverse the direction of the inequality sign - this is a crucial solving inequalities rule.

Vocabulary: Interval notation components:

  • () indicates values not included
  • [] indicates values are included
  • E represents "is in"
  • -∞ represents negative infinity
  • +∞ represents positive infinity
  • R represents all real numbers

Example: Interval notation examples:

  • TE[3,5) means 3≤t<5
  • TE(4,∞) means t>4

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Ranked #1 Education App

Download in

Google Play

Download in

App Store

Knowunity is the # 1 ranked education app in five European countries

4.9+

Average App Rating

13 M

Students use Knowunity

#1

In Education App Charts in 12 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying