Question

3•{5•2+[200-(5•y+y+40)-50]+320:8}-150=150

Answer 1

3•{5•2+[200-(5•y+y+40)-50]+320:8}-150=150
3•{10+[200-(6y+40)-50]+40}=150+150
3•(10+200-6y-40-50+40)=300
160-6y=300:3
160-6y=100
6y=160-100
6y=60
y=60:6
y=10