23.5 Quiz Review Equations 7R

23.5 Quiz Review Equations 7R

By Mary Salamone

​To check a solution:​

1. substitute the value of the variable​

2. Use the order of operations to simplify

3. If the statemen is true, the value is a solution.​

​x = 7?

Multiple Choice

m = 4 is the solution to which of the following equations?

• 2m + 3 = 13

• 5m - 7 = 18

• 3m - 4 = 8

Multiple Choice

In this soccer season, Emma has scored 1 more than twice the number of Nick's goals.  If Emma has scored 15 goals, which equation can be used to find x, the number of Nick's goals?

• x - 15 = 1
• x + 1 = 15
• 2x + 1 = 15
• x + 1 = x + 15

Multiple Choice

What could be the first step in solving the equation:

2(x + 7) = 62

• add 7 to both sides

• subtract 7 from both sides

• multiply everything in the parentheses by 2

• add 2 plus 7

  to get 9

Multiple Choice

Solve the following equation:

(solve on paper first)

$$-4x+3=-29$$  

• $$x=4$$  

• $$x=6$$  

• $$x=2$$  

• $$x=8$$  

Multiple Choice

Solve the following equation:

(solve on paper first)

$$\frac{x}{-2}+3=-3$$  

• $$x=0$$  

• $$x=12$$  

• $$x=-3$$  

• $$x=-6$$  

Multiple Choice

Solve the following equation:

(solve on paper first)

$$-3(4x-4)=96$$  

• x = 15

• x = 11

• x = -5

• x = -7