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egoroff_w [7]
3 years ago
14

F (x)=4x-7 when f (x)=8

Mathematics
1 answer:
MrRa [10]3 years ago
6 0
Since both are equivalent to f(x), 4x-7 must equal 8
4x-7=8

Add 7 to both sides
4x= 15

Divide both sides by 4
x=15/4

Final answer: x=15/4
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