Expressions & Equations Quiz 1 (Unit 2)

Which is the correct simplified version of the expression shown below after combining like terms?

12 + 3.4x - 5.4x - x

• -3x + 12

• 9x

• 9.8x + 12

• -2x + 12

Which is the correct solution to the two-step equation below?

2/5x + 10 = 30

• x = 100

• x = 12

• x = 50

• x = 16

Which is the correct simplified version of the expression below?

3/5b - 2 + 7b - 12 - 2/5b + 14

• -8b

• 8b

• -7 1/5b

• 7 1/5b

Simplify an expression for the perimeter of the rectangle shown.

• 17.2x + 16.4

• 17.2x - 16.4

• 8.6x + 8.2

• 8.6x - 8.2

Which of the following shows the equation after the variables have been collected on the left and the constants have been collected on the right?

-2x + 13 = -7x + 28

• -9x = 15

• 5x = 15

• 5x = 41

• -9x = 41

Solve the equation shown below.

4/5x + 8 = 29 + 1/5x

• x = 21

• x = -21

• x = -35

• x = 35

Solve the equation shown:

2.5x + 18 = 3.5x -4

• x = -22

• x = 22

• x = 14

• x = -14

Solve the equation shown:

-2w - 23 = 13w + 22

• x = 5

• x = -5

• x = 3

• x = -3

Solve the equation shown:

14 + 5/7x - 20 = 4/7x - 4

• x = 14

• x = -14

• x = 210

• x = -210

If the perimeter of the square is 97 inches, what is the value of x?

• x = -10.5

• x = 10.5

• x = 3

• x = -3