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OpenStudy (anonymous):
f(x) = 2(x + 4), find x if f(x) = 20
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OpenStudy (anonymous):
Isolate x by dividing 20 by 2 then subtracting 4 from the quotient to arrive at your answer.
OpenStudy (anonymous):
Helpppp
OpenStudy (anonymous):
f(x)=20 <=> 2(x+4)=20 <=> x+4=10 <=> x=6
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