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7/3-(2*x) = 8*x-((1/3)*x)+2/7 // - 8*x-((1/3)*x)+2/7
(1/3)*x-(2*x)-(8*x)+7/3-(2/7) = 0
(1/3)*x-2*x-8*x+7/3-2/7 = 0
43/21-29/3*x = 0 // - 43/21
-29/3*x = -43/21 // : -29/3
x = -43/21/(-29/3)
x = 43/203
x = 43/203
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