1)16y+26+47y-6= 63y+20
3)9(7+y)+8(6+y)= 63 + 9y + 8(6 + y) = 63 + 9y + 48 + 8y = 111 + 17y
4)89*6-9*6=480
1)16y+26+47y-6= 63y+20
3)9(7+y)+8(6+y)= 63 + 9y + 8(6 + y) = 63 + 9y + 48 + 8y = 111 + 17y
4)89*6-9*6=480