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4*x+x/20-(13/5) = x/4-2 // - x/4-2
4*x+x/20-(x/4)-(13/5)+2 = 0
4*x+x/20-(x/4)-13/5+2 = 0
19/5*x-3/5 = 0 // + 3/5
19/5*x = 3/5 // : 19/5
x = 3/5/19/5
x = 3/19
x = 3/19
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