Combine and Solve

Front

Solve the equation for x: 8x + 9 - 7 = 18

Back

x = 2

Front

Solve the equation for x: 8x + 2 - 5x = 32

Back

x = 10

Front

Solve the equation for x: 2x + 3x + 4 = 44

Back

x = 8

Front

Solve the equation for x: 3x + 12 + 9x = 72

Back

x = 5

Front

Solve the equation for x: 9x - 4x - 5 = 10

Back

x = 3

Front

What is the first step in solving the equation 8x + 9 - 7 = 18?

Back

Combine like terms: 8x + 2 = 18.

Front

What does it mean to combine like terms in an equation?

Back

It means to add or subtract terms that have the same variable and exponent.

Front

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

Back

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

Front

What is the solution to the equation 2x + 3x + 4 = 44?

Back

x = 8.

Front

How do you check if your solution x = 2 is correct for the equation 8x + 9 - 7 = 18?

Back

Substitute x = 2 into the equation: 8(2) + 9 - 7 = 18.