Решение уравнения 180- x =100 . x - 17= 40. x+ 24= 50
180-Х=100 .......Х-17=40............Х+24=50 Х=180-100........Х=40+17............Х=50-24 Х=80...................Х=57...................Х=26
180-x=100 x=180-100 x=80 x-17=40 x=40+17 x=57 x+24=50 x=50-24 x=26