Question

Find x if f(x) = 2x + 7 and f(x) = -1.
A.5
B.-4
C.-4

Answer 1

x = - 4

Explanation:

Hi there !

if f(x) = 2x + 7 and f(x) = -1 =>

2x + 7 = - 1

2x = - 1 - 7

2x = - 8

x = - 8 ÷ 2

x = - 4

Good luck !