Question

7y-4*(3y+5)=2-3*(4у-9)

Answer 1

7y-4*(3y+5)=2-3*(4у-9);

7y-12y-20=2-12y+27;

-5y-20=29-12y;

12y-5y=29+20;

7y=49;

y=49:7;

y=7

ответ: 7

Answer 2

7y-12y-20=2-12y+27

7y-12y+12y=2+27+20

7y=49

y=7