If f(x)=2x+1 and g(x) = x^-7, find (f-g)(x)

(f - g)(x) = f(x) - g(x)

... = (2x +1) -(x² -7)

... = 2x + 1 - x² + 7

... = -x² +2x +8 . . . . matches selection B.

you can't solve x because it is 2 linear equation and you only have one equation

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x