0.88-(5.12+0.08y)=4.29-y

0.88-(5.12+0.08y)=4.29-y
0.88-5.12-0.08y=4.29-y
-4,24 - 0,08y = 4,29 -y
-0,08y+y = 4,29+4,24
0,92y=8,53
y=8,53:0,92
y=9 25/92