14х + 27х = 656
41х = 656
х= 656 : 41
х= 16
14 * 16 + 27*16 = 656
16 *(14+27) = 656
16 * 41 = 656
656=656
81у + 38у = 645
119у=645
у= 645 : 119 = 645/119
у= 5 50/119
81 * 5 50/119 + 38 * 5 50/119 =645
81/1 * 645/119 + 38/1 * 645/119 = 645
(52245 + 24510)/119 =645
76755/119 = 645
645=645