Solve Equation Add and Subtract Easy

The inverse of addition is...

• division

• multiplication

• subtraction

• addition

x / 7  + 14 = 22

• x = -56

• x = 56

• x = -9

• x = 9

Use the Distributive Property to solve the equation.
4( x + 2) = 16

• -2

• 0

• 1

• 2

What is the first question you should ask when solving a two step equation?

• Should I use a calculator?

• Do we have an addition or subtraction problem?

• Is this going to be on the quiz?

• Should I multiply or divide?

9(x+3)=27

• x=0

• x=1

• x=9

• x=3

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.

• 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.

Solve x + 5 = 15

Remember to practice writing out the steps even if it is easy.

x = _____

How can you solve for the variable in x - 3 = 7?

• add 3 to the left side

• subtract 3 from the left side

• add 7 to the left side

• subtract 7 from the left side

When you solve for the variable, what must you do to keep the equation balanced?

x - 3 = 7

• Add 3 to 7

• Subtract 3 from 7

• Add 7 to x

• Subtract 7 from x