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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