Solving Variable Equations

Front

What is a variable in an equation?

Back

A symbol, often represented by a letter, that stands for an unknown value in an equation.

Front

What does it mean to solve an equation?

Back

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

Front

Solve the equation: x + 5 = 12

Back

x = 7

Front

What is the first step to solve the equation: 3x = 21?

Back

Divide both sides of the equation by 3.

Front

Solve the equation: 3x = 21

Back

x = 7

Front

What is the purpose of isolating the variable in an equation?

Back

To find the value of the variable by getting it alone on one side of the equation.

Front

Solve the equation: 7 + x = 15

Back

x = 8

Front

What is the distributive property?

Back

A property that states a(b + c) = ab + ac, used to simplify expressions.

Front

Solve the equation: 2(x + 2) = 16

Back

x = 6

Front

What is the next step after applying the distributive property in an equation?

Back

Combine like terms and isolate the variable.