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3 years ago

F(x)=8x+5 f(x)=21 find x

Mathematics

1 answer:

madam [21]3 years ago

4 0

Answer:

$f(x) = 8 x + 5...(1) \\ f(x) = 21...(2) \\ (1) = (2) \\ 8x + 5 = 21 \\ 8x = 21 - 5 \\ 8x = 16 \\ x = \frac{16}{8} = 2 \\ x = 2 \\ thank \: you$

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