Question

tìm x:

X + 50 + 11 = 120

Answer 1

x + 50 + 11 = 120

=> x + 50   = 120 - 11

=> x + 50    = 109

=>    x         = 109 - 50

=>    x         = 59

Vậy x = 59

Answer 2

x + 50 + 11 = 120

 x + 50   = 120 - 11

x + 50    = 109

  x         = 109 - 50

  x         = 59

Answer 3

x + 50 + 11 = 120

x + 50 = 120 - 11

x + 50 = 109

        x = 109 - 50

        x = 59

Answer 4

X+50+11=120

=>X+(50+11)=120

=>X+61=120

=>X=120-61

=>X=59

Answer 5

X+50+11=120

=>X+(50+11)=120

=>X+61=120

=>X=120-61

=>X=59

Answer 6

X+50+11=120

=>X+(50+11)=120

=>X+61=120

=>X=120-61

=>X=59