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21-(3*(1/26)*x) = 14-(2*(1/26)*x) // - 14-(2*(1/26)*x)
2*(1/26)*x-(3*(1/26)*x)-14+21 = 0
(-3/26)*x+2*(1/26)*x-14+21 = 0
7-1/26*x = 0 // - 7
-1/26*x = -7 // : -1/26
x = -7/(-1/26)
x = 182
x = 182
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