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7/11-(2*x) = 3 // - 3
7/11-(2*x)-3 = 0
7/11-2*x-3 = 0
-2*x-26/11 = 0 // + 26/11
-2*x = 26/11 // : -2
x = 26/11/(-2)
x = -13/11
x = -13/11
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