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7-7(2+3x)=
simplify

 Sep 14, 2018
 #1
avatar+100813 
+1

\(7-7(2+3x)\\ =7 +\;\; -7(2+3x)\\ =7 +\;\; -7*2\;\;+\;\;-7*3x\\ =7 +\;\;\; -14\;\;\;\;\;+\;\;-21x\\ =7 \;\; -\;\;\; 14\;\;\;\;\;-\;\;\;\;21x\\ =\quad -7\;\;\;\;\;\qquad -\;\;\;\;21x\\~\\ =-7-21x\)

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 Sep 14, 2018

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