Find x if f(x)=2x+7 and f(x)=-1

asked Mar 14, 2023 108k views

8 votes

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6 votes

Answer:

x = -4

Explanation:

$~~~~~~f(x) = -1\\\\\implies 2x +7 = -1\\\\\implies 2x = -1 - 7\\\\\implies 2x = -8 \\\\\implies x = -\frac 82 \\\\\implies x = -4$

Hendi answered Mar 21, 2023

by Hendi

4.5k points

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