Saper Anonymous
Ольга Шапочкина
x\12 - 3 = (x - 186)\72
(x - 3*12)\12 = (x - 186)\72
(6\6) *(x - 3*12)\12 = (x - 186)\72
6*(x - 36)\72 = (x - 186)\72
6*(x - 36) = (x - 186)
6x - 216 = x - 186
6x - x = -186 + 216
5x = -30
x = (-30)\5
x = -6
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