56.289х+45,07х-100,359х=52,15
25,5х-13,08-12,42х=52,907
186,37х-95,327х-52,043х=12,48

Спасибо большое!!1

56,289х+45,07х-100,359х=52,151x= 52,15x= 52,1525,5х-13,08-12,42х=52,90725,5x-12,42x= 52,907+13,08 13,08x= 65,987x= 65,987÷13,08x = 5,045186,37х-95,327х-52,043х=12,4839x=12,48x= 12,48÷39x=0,32