If f(x)=-12x−3, find x for f(x)=89. - Qammunity

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If f(x)=-12x−3, find x for f(x)=89.

asked Jan 7, 2017 88.6k views

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If f(x)=-12x−3, find x for f(x)=89.

Mathematics
middle-school

Salmin Skenderovic asked

by Salmin Skenderovic

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2 Answers

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89 = -12x - 3
89 + 3 = -12x
92 = -12x
-92/12 = x
-23/3 or -7 2/3 = x

Jli answered Jan 8, 2017

by Jli

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4 votes

f(89)=-12(89)-3=-1068-3=-1071

Bhuwan Gautam answered Jan 12, 2017

by Bhuwan Gautam

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