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6*x = ((20-(6*x))^1)/2 // - ((20-(6*x))^1)/2
6*x-(((20-(6*x))^1)/2) = 0
6*x-((20-6*x)/2) = 0
(-1*(20-6*x))/2+6*x = 0
(-1*(20-6*x))/2+(2*6*x)/2 = 0
2*6*x-1*(20-6*x) = 0
18*x-20 = 0
(18*x-20)/2 = 0
(18*x-20)/2 = 0 // * 2
18*x-20 = 0
18*x-20 = 0 // + 20
18*x = 20 // : 18
x = 20/18
x = 10/9
x = 10/9
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