Question

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

-5y=-5

y=1

Answer 2

Boa noite

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

6 - 2y + 14 - 7y = 15 - 4y

- 9y + 4y = 15 - 20

- 5y = - 5 (-1)

y = 5 / 5

y = 1