From the way you have it posted, it is unclear what you mean.
(35x^2 - 49x)/-7x or 35x^2 - 49x/-7x (?)
(35x^2 - 49x)/-7x = -5x + 7
35x^2 - 49x/-7x = 35x^2 + 7
How do you solve this equation?
35x^2-49x
__________
-7x
2 answers
use pythagoras theorm