Respuesta :

annaemelomed

Answer:

x=25.5

Step-by-step explanation:

Lets do math:

Look we can do this: we can substitute f(x) with 6 because thats what the second equation says. So we get this equation.

6=2x+61-4

-6         -6

0=2x+61-4-6

0=2x+51

2x=-51

x=-25.5

The end