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3/4 = ((7/1)/2)*x // - ((7/1)/2)*x
3/4-(((7/1)/2)*x) = 0
(-7/2)*x+3/4 = 0
3/4-7/2*x = 0 // - 3/4
-7/2*x = -3/4 // : -7/2
x = -3/4/(-7/2)
x = 3/14
x = 3/14
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