Tìm x: 4x-27=57 x=? x=?

Question

Tìm x: 4x-27=57                       x=?                        x=?

thanhthuythu · Answer

4x - 27 =57   4x = 57 + 27   4x = 84   x = 84 : 4   x = 21

hiennhi98 · Answer

4x -27 = 57   4x = 57 + 27   4x = 84   x = 84 :4   x= 21   vậy x=21