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### 15 Cards in this Set

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 equivalent expressions expressions that have the same value coefficient the numerical part of a variable (6x) constant a term without a variable (6) like terms terms that contain the same variable (6x and 2x) the distributive property Forms equivalent expressions: combines addition and multiplication: 3(4 + 2) = 3 x 4 + 3 x 2. simplifies w/subtraction: 2(x - 1) = 2x + 2[x + (-1]= 2x + (-2) = 2x - 2 simplest form an algebraic expression with NO like terms and no parenthesis: 6x + 12 inverse operations inverse operations "undo" each other subtraction property of equality creates equivalent expressions by subtracting an equal number from each side of an equation. addition property of equality creates equivalent expressions by adding an equal number for each side of an equation. division property of equality creates equivalent expressions by multiplying an equal number for each side of an equation. multiplication property creates equivalent expressions by multiplying by an equal number on each side of an equation. two-step equation an equation that contains two operations formula an equation that shows a relationship among certain quantities. Usually contains two or more variables. area the measure of the SURFACE ENCLOSED by a figure (a circle or square, etc.) perimeter the distance AROUND a geometric figure