Question

40-12:y+6×8-5×5=60 si x=100-[9+(80:2×2)-1]×3:4

Answer 1

40-12:y+6×8-5×5=60
40-12:y+48-25=60
40-12:y+23=60
63-12:y=60
12:y=63-60
12:y=3
3y=12
y=12:3
y=4

x=100-[9+(80:2×2)-1]×3:4
x=100-[9+(40×2)-1]×3:4
x=100-(9+80-1)×3:4
x=100-88x3:4
x=100-264:4
x=100-66
x=34