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02-09-2016
Mathematics

contestada

Explain how to do it? 7(x-3) + 5x

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Roberttt Roberttt

02-09-2016

You want to simplify or factor it?
Simplify:
7 * χ + 7 * -3 +5χ
=7χ + -21 +5χ
=(7χ+5χ)+-21
=12χ-21
Factor:7(x-3)+5x
12x-21
=3(4x-7)

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