Question

Find xif f(x) = 2x + 7 and f(x) = -1.

Answer 1

-4

Explanation:

To find the value you have to substitute x for -1. because f(x) = -1.

-2x + 7 = -1

-7= -7

-2x =-8

÷-2

x=-4

Hope it helps!

Answer 2

Answer: -4

Explanation:

Solve 2x+7=-1

2x. =-8

x. =-4