One-Variable Equations and Inequalities

Front

What is a constant?

Back

A one time amount.

Front

What is the first step in solving the equation 2x+10=22?

Back

Subtract 10 from each side.

Front

A variable is

Back

usually x or a letter and it is liable to change.

Front

A coefficient always goes with:

Back

The variable.

Front

Solve for y: 3y+20=-1

Back

y=-7.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.

Front

What is an inequality?

Back

A mathematical statement that compares two expressions using <, >, ≤, or ≥.

Front

What is the solution set of an inequality?

Back

The set of all values that satisfy the inequality.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater or less than another.

Front

What does it mean to isolate a variable?

Back

To get the variable alone on one side of the equation.