Question

Si f(×)=-3×+2 calcula f(×)=-7

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Answer 1

Explicación paso a paso:

$f(x) = 3x + 2 \\ - 7 = 3x + 2 \\ 3x = - 7 - 2 \\ 3x = - 9 \\ x = \frac{ - 9}{3} \\ x = - 3$