One and Second Step Equations

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

x - 8 = -5 

• 13

• -13

• 3

• -3

18+m=8

• m=0

• m=10

• m=-10

• m=8

-16+ x= -15

• 2

• 0

• -1

• 1

Mathematical Equivalence

ON

Mathematical Equivalence

ON

What is the first step you should do to solve this equation?

• Add 31 to both sides

• Subtract 31 from both sides

• Subtract 5 from both sides

• Divide by -6 on both sides

How would you solve each equation?

• subtract 4 from both sides of =

• divide both sides of = by 4

• 4x=12

• multiply both sides of = by 4

• x+4=12

• add 4 to both sides of =

• x-4=12

What is the last step you should do to solve this equation?

• Add 6 to both sides

• Divide both sides by -6

• Divide both sides by 36

• Multiply both sides by -6

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.