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50/27 = 7/9-((1/3)*x) // - 7/9-((1/3)*x)
(1/3)*x+50/27-(7/9) = 0
(1/3)*x+50/27-7/9 = 0
1/3*x+29/27 = 0 // - 29/27
1/3*x = -29/27 // : 1/3
x = -29/27/1/3
x = -29/9
x = -29/9
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