 Woodmere Middle School
 Unit 1 Solving Equations

Unit 1Solving Equations
REVIEW OF SOLVING EQUATIONS
Integer Rules (*Print the Integers Rules bookmark here: Integer Bookmark)
Adding:
· Positive + Positive = Positive
· Negative + Negative = Negative
· Negative + Positive Use the sign of the larger # and subtract
Subtracting:
· “Keep, change, change”
Multiplying and Dividing:
· When both signs are the same, the answer is positive
· When the signs are different, the answer is negative
TwoStep Equations
How to solve a twostep equation:
· Decide what to remove to get you closer to x = . . .
· Remove it by doing the opposite or inverse operation
· Do that to both sides
Equation
Step One
Step Two
Solution
3x + 6 = 54
3x + 6 = 54
 6 =  6
3x = 48
3x = 48
3 3
x = 16
Distributive Property
The distributive property means that: You get the same answer when you:
· multiply a number by a group of numbers added together, or
· do each multiply separately then add them
5(3x + 2) = 15x + 10 or 5(3x) + 5(2) = 15x + 10
*Make sure that BOTH the numbers inside the parenthesis get multiplied by the number outside the parenthesis.
Variables on both sides
· Remove the x with the smaller number in front of it first
· Solve the 2 step equation that remains
MultiStep Equations
· Distribute, combine like terms and solve