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Published byBarrie Washington Modified over 8 years ago

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Chapter 1 Solving Linear Equations

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1.1 Solving Simple Equations

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To solve for an equations means… To isolate the variable by doing inverse opertaions

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Equivalent Equations Have the same solution

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The Addition Property of Equality if a = b, then a + c = b + c The Subtraction Property of Equality if a = b, then a -c = b -c

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x + 7 = 2 Show your work exactly like this: Write the problem: Add same number to both sides of “=“: Write answer with box around it - 7 x = -5

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The Multiplication Property of Equality If a = b, then ac = bc Division Property of Equality If a = b, then

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Solve: 5x = 30 Show your work exactly like this tonight

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Solve: -12x = -8

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To solve an equation like: Multiply both sides of the equation by the reciprocal of the coefficient

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Solve:

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Triangle Sum Theorem The sum of the measures of the interior angles of a triangle is 180°. A C B m A + m B +m C = 180°

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Homework Textbook Page 7-9 (2-38) even

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