Expressions and Equations

When the same number is multiplied by itself repeatedly, exponent notation offers a concise way to express the operation. A power consists of a base a

Multiplication and exponents both involve the same numbers but produce very different results. Understanding the distinction prevents a common error i

Evaluating a power means calculating its value by performing the repeated multiplication it represents. Once evaluated, powers can be compared using i

Translating word phrases into algebraic expressions is a key skill in algebra. Identifying keywords that signal addition or subtraction allows student

In math, word phrases can be written as expressions using numbers and symbols. This helps you translate everyday language into math so you can solve p

Translating sentences into single-variable expressions is an essential algebra skill that connects language to mathematics. A single-variable expressi

Both equations and inequalities pose mathematical questions about unknown values. An equation asks: what value makes both sides equal? An inequality a

In many relationships, one quantity changes based on the value of another. The independent variable is the quantity that is chosen or controlled, whil

A value is a solution to an equation if it makes the equation true. Substitution can be used to check whether a given value is a solution.

Variables are symbols, usually letters, that represent numbers. Using variables helps you write mathematical relationships clearly, especially when a

Writing and solving inequalities helps students represent situations in which values are limited by a maximum or minimum amount. Inequalities are usef

Solving equations from real-world contexts means using mathematics to describe a situation and find an unknown value. Many everyday problems involve r