Question

Решите уравнение плиз 
0,5y-1-(2y+4)=y

Answer 1

-5-1.5у=у

2.5у=-5

у=-5/2.5

у=2

Answer 2

0,5y-1-2y-4-y=0

0.5y-2y-y=5

-2.5y=5

y=-2