710 Module 6 Lesson7

-1.2 + x = 4.8

• 3.6

• -4.6

• 6

• -3.6

r + 5.5 = 7.2

• 1.7

• 12.7

• -2.2

• -3.6

What is the inverse of subtraction?

• subtraction

• addition

• division

• multiplication

What is the step you would take to isolate the variable in this equation? c - 4.6 = 13.9

• add 4.6 to both sides

• subtract 4.6 from both sides

• add 13.9 to both sides

• subtract 13.9 from both sides

What is the step you would take to isolate the variable in this equation? 77.4 = t - 43.2

• add 43.2 to both sides

• subtract 43.2 from both sides

• add 77.4 to both sides

• subtract 77.4 from both sides

18.5 + w = -1.5

-1.9 + d = -1.9

18 = 6.6 + r

c - 2.2 = -13

• 15.2

• -15.2

• 10.8

• -10.8

What is the goal when solving equations?

• to isolate the variable

• to add

• to find which side is bigger

• to get rid of the variable