One Step Addition and Subtraction

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

Solve the equation:
x - 5.5 = 10.5

• x = 16

• x = -15

• x = 5

• x = -5

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10

• v + 4 = 10

• 10 - 4 = v

• Answer not Given

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

Translate 4 more than x equals 7 into an equation and solve. 

• x+4=7
  x = 11

• x+4=7
  x = 3

• x-4=7
  x = 11

• x-4=7
  x=3

What is the inverse operation of subtraction?

• Subtraction

• Multiplication

• Division

• Addition

15 > -5 + z

• z < 20

• z > 20

• z > 10

• 10 > z

Pick the correct inequality.

• A

• B

• C

• D

Does the given value make the inequality true?  x + 9 > 21, when x = 15

• True

• Not True