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5-((3/4)*x) = 7/12 // - 7/12
5-((3/4)*x)-(7/12) = 0
(-3/4)*x-7/12+5 = 0
53/12-3/4*x = 0 // - 53/12
-3/4*x = -53/12 // : -3/4
x = -53/12/(-3/4)
x = 53/9
x = 53/9
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