Intro Two Step Equations

What is the first step in solving this equation:

5x + 7 = 12

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12

3c + 5 = 23

• c = 3

• c = 6

• c = 7

• c = 18

Mathematical Equivalence

ON

Mathematical Equivalence

ON

• 2

• -2

• 8

• 8

• x=3

• x=2

• x=-2

• x=1

What is the value of t that satisfies the equation?

• 10
  

• 11

Solve for x

• 35

• 3.5

• 0.35

• -35