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13/5-(x/6) = 2*x // - 2*x
13/5-(x/6)-(2*x) = 0
13/5-(x/6)-2*x = 0
13/5-13/6*x = 0 // - 13/5
-13/6*x = -13/5 // : -13/6
x = -13/5/(-13/6)
x = 6/5
x = 6/5
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