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