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((7/1)/2)/4 = x/16 // - x/16
((7/1)/2)/4-(x/16) = 0
(7/2)/4-(x/16) = 0
7/8-1/16*x = 0 // - 7/8
-1/16*x = -7/8 // : -1/16
x = -7/8/(-1/16)
x = 14
x = 14
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