math
posted by ferrer .
still am not sure how to solve rational expression
x/[5(x+2)] + (x3)/(x+2) = 7/5

Multiply both sides of the equation by (x+2) to get the x term out of the denominators. Then combine terms and use common denominators.
(x/5) + (x3) = (7/5)(x+2) = (7/5)x + 7/10
(12/10)x  28/10 = (14/10)x + 7/10
(2/10)x = 35/10
2x = 35
x = 17 1/2