Question

Given the function f(x) = 2x + 61 – 4, for what values of x is f(x) = 6?

Answer 1

x=25.5

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