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(2/3)*x-8 = 2*x-(77/9) // - 2*x-(77/9)
(2/3)*x-(2*x)+77/9-8 = 0
(2/3)*x-2*x+77/9-8 = 0
5/9-4/3*x = 0 // - 5/9
-4/3*x = -5/9 // : -4/3
x = -5/9/(-4/3)
x = 5/12
x = 5/12
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