Solving Multi-Step Linear Equations

- 4x + 1 = 21

• x = 120

• x = 5

• x = 30

• x = - 5

3x - 5 = - 26

• x = - 21

• x = 21

• x = - 7

• x = 61

Solve: 3(x-4) = -3

• 3

• -3

• 5

• -5

Solve: - 7(z - 6) = - 80

Janet wants to rent a U-Haul to move her mother. She spends $225 for the move. The U-Haul costs $45 up front and $1.50 a mile. What equation would you use to solve the number of miles her mother moved?

• 225 = 45x + 1.5

• 45 + 1.5x = 225

• 45x + 1.5x = 225

• 225 = 45(1.5) + 1.5x

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

A toy company spends $1500 per day for factory expenses plus $8 to make each teddy bear.  They sell the teddy bears for $12 a piece.  Which equation could be used to find the number of bears t the company has to sell in one day to equal its daily cost?

• 1500 + 8t = 12

• 12 + 8t = 1500

• 1500 + 8t = 12t

• 8t = 12t + 1500

Find the value of the unknown variable

• A

• B

• C

• D

Solve: -7(x + 3) = -4(x - 6)

Which of the following equations would have a solution of 3? (Choose all that apply.)

• 3x = 9

• 15x = - 45

• 2x + 1 = 21

• 7x - 6 = 15

• 2(4x - 3) = 3x + 9