1. Lesson 1-8 Solving Addition and Subtraction Equations

2. Definitions Solve- to find the values of the variables that makes the equation true. Solution- the value to a variable that makes an equation true. Subtraction Property of Equality- if you subtract the same number from each side of an equation, the two sides remain equal.

4. Examples Solve and check your solution. 1.15 + c = 7 2.y + 3 = -8 3.5 = n + 4

5. Definitions Inverse operations- operations that “undo” each other. (addition and subtraction). Addition Property of Equality- if you add the same number from each side of an equation, the two sides remain equal.

7. Examples 4.z – 16 = -5 5.b – 4 = -10 6.7 = p - 12