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x in (-oo:+oo)
8/17 = x/51 // - x/51
8/17-(x/51) = 0
8/17-1/51*x = 0 // - 8/17
-1/51*x = -8/17 // : -1/51
x = -8/17/(-1/51)
x = 24
x = 24
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