–3(5 – 15n) = 15(3n – 2)a. 30 b. –15 c. no solution d. all real numbers

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asked Jul 2, 2017 113k views

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–3(5 – 15n) = 15(3n – 2)a. 30 b. –15 c. no solution d. all real numbers

Mathematics
high-school

Joe Halliwell asked

by Joe Halliwell

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1 Answer

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$-3(5-15n) = 15(3n-2)\\-3\cdot5-3\cdot(-15n)=15\cdot3n+15\cdot(-2)\\-15+45n=45n-30\ \ \ |subtract\ 45n\ from\ both\ sides\\\\-15=-30-FALSE\\\\Answer:\fbox{c.\ no\ solution}$

Tumtumtum answered Jul 7, 2017

by Tumtumtum

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