Question

2(целых) 1/2y-1,27=3/4y-4,77

Answer 1

2 1/2y-1,27=3/4y-4,77
2,5y-1,27=0,75y-4,77
2,5y-0,75y=-4,77+1,27
1,75y=-3,5
y=-3,5÷1,75
y=-2