Solving for Equations

Which property says that you can add the same number to both sides of any equation?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Commutative Property of Equality

Which property says that you can multiply both sides of any equation by the same number?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

If 2x - 5 = 10, then 2x = 15.

• Subtraction Property of Equality

• Addition Property of Equality

• Division Property of Equality

• Substitution

Name the first property you will use to solve this equation:
3(x – 7) = 42

• Multiplication Property of Equality

• Commutative property

• Associative Property

• Distributive Property

2x + 1 = 6
When solving, first UNDO add/sub. What would the first step be in solving this equation?

• Divide by 2

• Subtract 1

• Subtract 6

• Times 2

Look at the work. What SHOULD have been the first step?

• It's correct!

• Subtract 1 on both sides

• Add 5 on both sides

• Divide by 3 on both sides

What is the first step in solving this equation 8x - 6 = 10

• Add 6

• Subtract 8

• Divide by 8

• Subtract 6

What is the first step to solve this equation:
-3x + 11 = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations

• math

• variable

• PEMDAS