решить уравнения   3х+0,8//9,6=4,8//3,6;   5x+3//9=27//13,5;  8//20=28//9x+7

3х+0.8\9.6=4.8\3.63.6*(3х+0.8)=9.6*4.810.8х+2.88=46.0810.8х=46.08-2.8810.8х=43.2х=43.2:10.8х=45х+3\9=27\13.513.5*(5х+3)=9*2767.5х+40.5=24367.5х=243-40.567.5х=202.5х=202.5:67.5х=38\20=28\9х+78*(9х+7)=20*2872х+56=56072х=560-5672х=504х=504:72х=7