Question

10x + 11 + 9 + 100x + 20 = 150

Tìm x?

Answer 1

=>  (10x + 100x) + (11+9+20) = 150

=>   110x + 40 = 150

=>   110x = 110

=>   x = 1

Answer 2

10x+11+9+100x+20=150=>110x+40=150

                                             =>110x=150-40=110

                                             =>x=110:110=1

                                                                               Vậy x=1

Answer 3

10x+11+9+100x+20=150

(10x+100x)+(11+9+20)=150

110x+40=150

110x=150-40

110x=110

x=110:110=1

Vậy x=1

Answer 4

10x+11+9+100x+20=150

10x+100x+11+9+20=150

110x+40                =150

110x                     =150 - 40

110x                     =110

x                          =1

Answer 5

10x+11+9+100x+20=150

(10x+100x)+(11+9+20)=150

110x+40                     =150

110x                             =150-40

110x                             =110

x=1