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(4/5)*x+4*x+1 = 53/5 // - 53/5
(4/5)*x+4*x-(53/5)+1 = 0
(4/5)*x+4*x-53/5+1 = 0
24/5*x-48/5 = 0 // + 48/5
24/5*x = 48/5 // : 24/5
x = 48/5/24/5
x = 2
x = 2
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