Expressions and Equations Quiz

Which is the correct simplified version of the expression 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?

 $\frac{2}{5}x\ +\ 10\ =\ 30$  

• x = 100

• x = 12

• x = 50

• x = 16

Simplify the expression.

 $\frac{3}{5}b\ -\ 2\ +\ 7b\ -\ 12\ -\ \frac{2}{5}b\ +\ 14$  

• 8b

• 8b -14

• 0

•  $7\frac{1}{5}b$ 

Simplify an expression for the perimeter of the rectangle shown.

• 8.6x + 8.2

• 17.2x + 16.4

• 16.8x

• 11.6x + 5.2

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:

 $\frac{4}{5}x\ +\ 8\ =\ 29\ +\ \frac{1}{5}x$  

• x = 21

• x = 37

• x = 35

• x = -21

Solve the equation:

2.5x + 18 = 3.5x - 4

• x = 22

• x = -22

• x = 2.3

• x = 3.6

Solve the equation:

-45 = 15x

• x = 30

• x = -30

• x = 3

• x = -3

Solve the equation:

 $14\ +\ \frac{1}{7}x\ =\ 16$  

• x = 2

• x = 14

• x = 140

• x = 20

A square is shown above. If the perimeter of the square is 97 inches, what is the value of x?

• x = 24.25

• x = 3

• x = 6.75

• x = 2.5