Solving Equations

Front

Translate: Four times a number plus six is 30.

Back

4x + 6 = 30

Front

Write an equation: Three times a number plus five times the same number is 40.

Back

3x + 5x = 40

Front

Solve: 3x + 7 = 28

Back

x = 7

Front

Solve: x + 3x - 2x = 12

Back

x = 6

Front

Expand: -9(2g - 3)

Back

-18g + 27

Front

What is a variable in an equation?

Back

A symbol (often a letter) that represents an unknown value.

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 the first step in solving the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to isolate the term with the variable.

Front

What is the solution to the equation 5x = 25?

Back

x = 5

Front

What is the distributive property?

Back

a(b + c) = ab + ac, distributing a across the terms in parentheses.