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Published byHubert Townsend Modified over 8 years ago

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DO NOW

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Objective The student will be able to: solve equations using multiplication and division. Designed by Skip Tyler, Varina High School

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1) Solve. 5t = 60 To get the variable by itself, which number needs to be moved? 5 To move the 5, you have to do the opposite operation. What operation will we use? division

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1) Solve 5t = 60 5 5 t = 12 5(12) = 60 1.Draw “the river” to separate the equation into 2 sides 2.Divide both sides by 5 3.Simplify 4.Check your answer

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2) Solve 15 = 3n 3 3 5 = n 15 = 3(5) 1.Draw “the river” 2.Divide both sides by 3 3.Simplify 4.Check your answer

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3) Solve -3v = -129 1.v = -126 2.v = -43 3.v = 43 4.v = 126 Answer Now

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4) Solve You don’t like fractions? Let’s get rid of them! “Clear the fraction” by multiplying both sides of the equation by the denominator.

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4) Solve 4 · · 4 x = 48 1.Draw “the river” 2.Clear the fraction – multiply both sides by 4 3.Simplify 4.Check your answer

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3 · = 18 · 3 2x = 54 2 2 x = 27 1.Draw “the river” 2.Clear the fraction – multiply both sides by 3 3.Simplify 4.Divide both sides by 2 5.Simplify 6.Check your answer 5) Solve = 18

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Think and Discuss On page 57, answer the questions 1-4 under Think and Discuss at the bottom of the page.

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6) Which step clears the fraction in 1.Multiply by 3 2.Multiply by 5 3.Multiply by -12 4.Multiply by -5 Answer Now

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