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(3/4)*x+9 = 3*x+351/44 // - 3*x+351/44
(3/4)*x-(3*x)-(351/44)+9 = 0
(3/4)*x-3*x-351/44+9 = 0
45/44-9/4*x = 0 // - 45/44
-9/4*x = -45/44 // : -9/4
x = -45/44/(-9/4)
x = 5/11
x = 5/11
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