Решить уравнение: 1) (4.5x+3.6)*(-19.6)=0 2) (1.2x+16.8)*(-13.1)=0 3) -32.7*(0.1x+6.3)=0 4) -15(целых) 1/13 *(1.9x+5.7)=0
1) 4.5х*-19.6+3.6*-19.6=0 -88,2х-70,56=0 -88,2х=70,56 х=-0,8 2)-15,72х-220,08=0 -15,72х=220,08 х=-14 3)-3,27х-206,01=0 -3,27х=206,01 х=-63 4)-15/13×(1,9х+5,7)=0 -57/26х-171/26=0 -57/26х=171/26 х=171/26÷-57/26 х=-3