8(12x+37)+5(27-15x)=638
96х + 296 + 135 - 75х = 638
96х - 75х = 638-296-135
21х = 207
х = 207/21
х=9,85714285714
8(12x+37)+5(27-15x)=638
96х + 296 + 135 - 75х = 638
96х - 75х = 638-296-135
21х = 207
х = 207/21
х=9,85714285714