Intro to second semester

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equations and solutions

~ solutions: a value for a variable that makes an equation true

~solving and equation = the process of finding the solution. We want the variable by itself.

~Inverse operations to "undo"

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additon property

~if you add the same number to each side it's still equal.

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subtraction property

~f you subtract the same number from each side of the problem the sides remain equal

~ subtract from both sides when adding

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writing equations

~variables are used to represent unknown

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reciprocial

~same thing just flipped/flopped

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division property of equality

~ when you divide each side of an equation by the same number

~nonzero the sides that remain equal

~you can divide by nonzero just not zero

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Multipliacation property of equality

when you multiply each side of an equation by the same nonzero number, the two sides remain equivalent