Solving Equations by Simplifying

4 + b = 30

• -34

• 34

• -26

• 26

What could you do for the first step in simplifying this problem: 4(3x+2)=28

• Subtract 2 from both sides

• Distribute 4 by multiplying it to each term in the parenthesis

• Divide 4 from both sides

What operation do you use to "undo" addition?

• Addition

• Subtraction

• Multiplication

• Division

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

x - 32 = 49

• x = 17

• x = 71

• x = 81

• x = 49

y - 4.6 = 12

• 16.6

• 5.8

• 7.4

• Answer not Given

Which equation has x = 5 as the solution?

• x + 15 = 10

• 2x = 5

• 2x = 10

-22 + x = -42

• 64

• -64

• 20

• -20

Simplify the expression:

9z - 21 - 3z + 10

• Simplified

• 9z - 21 - 7

• 9z - 11 -3z

• 6z - 11

To solve x - 4 = 7, what would you do to both sides?

• add 7 to both sides

• subtract 7 from both sides

• add 4 to both sides

• subtract 4 from both sides