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(3/5)*x+6 = 54/5 // - 54/5
(3/5)*x-(54/5)+6 = 0
(3/5)*x-54/5+6 = 0
3/5*x-24/5 = 0 // + 24/5
3/5*x = 24/5 // : 3/5
x = 24/5/3/5
x = 8
x = 8
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