Question

determine o valor de x, de modo que dado f(x)=5x-7, f(x)=3/8 pfvv alguem mds​

Answer 1

Resposta:

f(x)=5x-7, f(x)=3/8

5x-7=3/8

tudo vezes 8

40x-56=3

40x =59

x=59/40

Answer 2

Resposta:

f(x) = y

y = 5x - 7

y = 3/8

3/8 = 5x - 7

5x = 3/8 + 7

5x = (3 + 56)/8

5x = 59/8

x = 59/40