Lesson 1-8 Solving Addition and Subtraction Equations.

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Presentation transcript:

Lesson 1-8 Solving Addition and Subtraction Equations

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.

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

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.

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