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569/12 = 7*x-((1/3)*x)+3/4 // - 7*x-((1/3)*x)+3/4
(1/3)*x-(7*x)+569/12-(3/4) = 0
(1/3)*x-7*x+569/12-3/4 = 0
140/3-20/3*x = 0 // - 140/3
-20/3*x = -140/3 // : -20/3
x = -140/3/(-20/3)
x = 7
x = 7
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