Решите, , уравнения. - . 20 . заранее . (5x+1)(2x-3) = (10x-3)(x+1) (7x-1)(x+5) = (3+7x)(x+3)

(5x+1)(2x-3) = (10x-3)(x+1)
10x²-13x-3-10x²-7x+3=0
-20x=0
x=0
(7x-1)(x+5) = (3+7x)(x+3)
7x²+34x-5-7x²-24x-9=0
10x=14
x=1,4