One Step Addition and Subtraction Equations Easy

x - 8 = 2

• 10

• 11

• 12

• 6

x - 6 = 10

• 16

• 17

• 4

• 3

x-10=12

Solve for x.

Make sure to check your work. If you need to use scratch paper go ahead!

• x=26

• x=21

• x=34

• x=22

12+z=15

• z=8

• z=6

• z=3

• z=0

r-16=5

Solve for r. Check your work. Remember Addition is the inverse of subtraction.

• r=21

• r=37

• r=56

• r=r

2+n=16

Solve for n.

Tip: Isolate the variable.

• n=30

• n=5

• n=15

• n=14

• n=32

x-60=20

Solve for x. Check your Work. Try to get x by itself. Use the inverse operation. No Calculator.

• x=87

• x=79

• x=80

• x=92

What is the inverse (opposite) of addition?

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• Add 15 on both sides of the equal sign.

• Subtract 15 on both sides of the equal sign.

• Add 15 on the left side of the equation and subtract 15 on the right side of the equal sign.

• Subtract 15 on the left side of the equation and add 15 on the right side of the equal sign.

Which of the following are important to remember when solving equations?

• Whatever you do to one side of the equal sign, you do the same thing on the other side.

• The goal is to get the variable on the left side of the equal sign

• We need to undo the operation being shown by using the inverse (or opposite) operation.

• Whatever you do to one side of the equal sign, you do the opposite on the other side.

• The goal is to get the variable alone on one side of the equal sign.