Simplify into one fraction. -5x/x+3 - 7/x+3

A. -5x-7/x+3
B. -5x+7/x+3
C. -5x-7/(x+3)^2
D. -5x+7/(x+3)^2

1 answer

The common denominator is (x+3), so we can combine the fractions:

-5x/(x+3) - 7/(x+3) = (-5x-7)/(x+3)

Answer: A. -5x-7/x+3