Question

3) Sendo F(x)= - 5x -1, determine o valor de x de modo que: A)F(x)= 11 B)F(x)= -7​

Answer 1

Resposta:

a)

f(x) = -5x - 1

11 = -5x - 1

-5x - 1 = 11

-5x = 11 + 1

-5x = 12

x = 12/-5

b)

f(x) = -5x - 1

- 7 = -5x - 1

-5x - 1 = -7

-5x = -7 + 1

-5x = -6

x = -6/-5

x = 6/5

Bons Estudos!!!