Question

Реши уравнение: (15y+1)⋅(2y−3)=(30y−4)(y+1)

Answer 1

(15y+1)×(2y-3)=(30y-4)(y+1) =y=1,69

Answer 2

30y2-43y-3=30y2+26y-4 следовательно
30y2 -30y2-43y-26y=-4+3
-69y=-1
y=69