Question

qual o valor de x tal que f(x)=150, sendo a funçao f(x)=-8-4x?

Answer 1

f(x) = -8 - 4x com f(x) = 150, logo:
150 = -8 - 4x

4x = -8 - 150

4x = -158

x=$\frac{-158^{:2}}{4_{:2}}=-\frac{79}{2}$

x=$\{- \frac{79}{2}\}$