Question

207+(x+35)=312

Answer 1

207+(x+35)=312

=>x+35=312-207

=>x=105-35

=>x=70

vậy x=70

Answer 2

207+(x+35)=312

=> x+35=312-207

=> x+35=105

=>      x=105-35

=>      x=70

   Vậy x=70