Question

s) 2.(3 - y) + 7.(2-y)=15-4y

Answer 1

2 . ( 3 - y ) + 7 . ( 2 - y ) = 15 - 4y
6 - 2y + 14 - 7y = 15 - 4y
- 2y - 7y + 4y = 15 - 6 - 14
- 9y + 4y = 9 - 14
- 5y = - 5 ( - 1 )
5y = 5
y = 5/5
y = 1