Math Review #1

In the equation 3x = 18, the operation being performed between 3 and x is

• division

• multiplication

• addition

• subtraction

In the equation 3x = 18, x = ?

• x = 6

• x = 21

• x = 15

• x = 54

In the equation

 $\frac{x}{6}\ =\ 4$  the operation being performed between x and 6 is

• addition

• subtraction

• multiplication

• division

• add 6 to both sides

• subtract 6 from both sides

• multiply both sides by 6

• divide both sides by 6

In the equation

 $\frac{x}{6}\ =\ 4$  , x = ?

• x = 10

• x = 0.6666....

• x = 24

• x = -2

• y = 48

• y = 448

• y = 64

• y = 7

Solve for z,

 $\frac{z}{3}\ =\ 12$  

• z = 36

• z = 4

• z = 15

• z = 9

Solve for x,

 $-15\ =\ 15x$  

• -30 = x

• 30 = x

• 1 = x

• -1 = x

What is the inverse operation you would use to solve:

6x = 36

• Multiply

• Divide

• Add

• Subtract

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3