Equations Math Quiz

-6x = 30

• x = - 5

• x = 24

• x = 5

• x = 36

What would be the best first step to solving the equation in one step?

• multiply both sides by ³/₂ 

• divide both sides by 3

• multiply both sides by 3

• subtract ²/₃  from both sides

Which equation has x = 5 as the solution?

• x + 15 = 10

• 2x = 5

• 2x = 10

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

Which of the following is the simplified version of this equation?

• -21x + 27

• -21x - 27

• -21x - 9

• -21x - 12

Which of the following expressions simplifies to -15a + 30?

• -3(-5a + 10)

• 5(-3a - 6)

• -15(a + 2)

• 6(-2.5a + 5)

What is the simplified version of this expression?

3(4x - 5)

Which of the following answers best represents the simplified form of the area of this rectangle?

• 9.6x + 7 + 5

• 9.6x + 9.5

• 2.5(9.6x + 7)

• 19.1x