Question

How would I solve for this?

Answer 1

Given question ,

f(x) = 5-x

As x is a function ,

Replacing value of x to find f(-7) by -7 gives us ,

f(-7) = 5-(-7)

f(-7) = 5 + 7

f(-7) = 12

Answer 2

1

Explanation:

replace x with -7

f(-7) = 5 - (-7)

f(-7) = 5 + 7

f(-7) = 12