5(x+12)+22=92 5(x+12)=92-22 5(x+12)=70 x+12=70:5 x+12=14 x =14-12 x =2 Vậy, x=2. You can't use 'macro parameter character #' in math modeYou can't use 'macro parameter character #' in math mode Trả lời
x+12)+22=92
5(x+12)=92-22
5(x+12)=70
x+12=70:5
x+12=14
x=14-12
x=2