-15(15+y)-12(12y+1)+10=16(3y-16)-17(y+17)

-225-15y-144y-12+10=48y-256-17y-289

-15y-144y-48y+17y=-256-289+225+12-10

-190y=-318

y=1,7

15(15+y)-12(12y+1)+10=16(3y-16)-17(y+17)

-225-15y-144y-12+10=48y-256-17y-289

-15y-144y-48y+17y=-256-289+225+12-10

-190y=-318

y=1,7