Ответ:
32m+48+42-28m=310
4m=310-48-42
4m=220
m=220:4
m=55
Решение:
4(8m + 12) + 2(21 - 14m) = 310
32m + 48 + 42 - 28m = 310
32m - 28m = 310 - 48 - 42
4m = 220
m = 220 : 4
m = 55
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Ответ:
32m+48+42-28m=310
4m=310-48-42
4m=220
m=220:4
m=55
Решение:
4(8m + 12) + 2(21 - 14m) = 310
32m + 48 + 42 - 28m = 310
32m - 28m = 310 - 48 - 42
4m = 220
m = 220 : 4
m = 55