Solving Equations

What is the inverse operation of subtraction?

• Subtraction
• Multiplication
• Division
• Addition

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

 6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

2d + 7 = 9 

• 1
• 7
• 4
• 3

11 = 3z + 5

• 2
• 6
• 1
• 4

Solve.  x/4 + 11 = 20

• 9
• 36
• 9/4
• 31/4

Solve   -5t + 9 = 24

• -3
• 3
• 12

Solve:
10x + 9 = 4x - 9

• 0
• 3
• -3
• -18

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.