inverse operations 1

Using inverse operation to solve.

x - 15 = 45

• Add 45

• Subtract 45

• Add 15

• Subtract 15

solve (using inverse operation)

y + 53 = 99

• Add 99

• Add 53

• Subtract 99

• Subtract 53

solve for n of the problem:

n + 1.5 = 5

• Subtract 1.5

• Add 5

• Add 1.5

• Subtract 5

Solve for the unknown

k - 7 = 12

• Add 12

• Add 7

• Subtract 12

• Subtract 7

To solve the equation
x + 5 = 8
 I would ....

• subtract 5 from x
• subtract 5 from both sides
• subtract 5 from one side and add 5 to the other
• add 5 to both sides

Tags

CCSS.6.EE.B.7

is x = 0 is the solution of this problem? why or why not?

x - 17 = 17

• subtract 17 from both sides

• multiply both sides by 17

• add 17 to both sides

• divide both sides by 17

To solve 
2 + w = 20

• Add 2 and w = 22
• Multiply by 2 and w = 40
• Subtract 2 and w = 18
• Divide by 2 and w = 10

Tags

CCSS.6.EE.B.7

Solve for x and state which operation you do first?

x - 4 = 17

• x = 21

• x = 13

• x = 19

• x = 24

John says "Subtracting both sides by 18 is the first step to solve this problem". Is he correct? If not, correct him and then solve for the unknown

x - 18 = 3

• x = 37

• x = 15

• x = -21

• x = 21

x + 24 = 44

• x = -20
• x = 68
• x = 20
• x = -68

Tags

CCSS.6.EE.B.7