ban ghi thieu da ban nhe
khong phai co a qua ma la co 4 qua moi dung
ban doi mot chut minh se ghi loi giai giup ban
goi ro thu nhat la a
ro thu hai la b
a +4= b
1/3 x [a+24]=b
1/3a + 8 = a +4
a - 1/3a =8-4
2/3a=4
vay a la : 4: 2/3=6
vay b la : 6+4=10