Question

-3 (2,5-y)=28,5+4,5y. Решите пожалуйста!

Answer 1

-7.5+3y=28.5+4.5y
3y-4.5y=28.5+7.5
-1.5y=36(-15)
y=-24

Answer 2

-3(2.5-y)=28.5+4.5y
-7.5+3y=28.5+4.5y
-1.5y=36
-y=24
y= - 24