Expressions

Algebra 1 - combine like terms

“simple way” since they can get more in depth but this is a broad way on how to do it.

Algebra 1 - Operations w/ Numbers & Simplifying Expressions

Operations and simplifying expressions

Algebra 1 - Order of Operations and the Distributive property

PEMDAS and distributing

Algebra 1 - Set Theory

Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects.