What is the input value for an output value of -4 for the function g(x)=28/x-7

Question

asked Aug 22, 2020 16.5k views

1 Answer

Dlink · Answer 1 · 2020-08-26T16:53:19+0000

9 1/3

-4 = 28 / x - 7

Add 7 on both sides.

3 = 28 / x

Multiply by x on both sides.

3x = 28

Divide both sides by 3.

x = 28/3

x = 9 1/3