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2*x-6 = (4*x)/5 // - (4*x)/5
2*x-((4*x)/5)-6 = 0
2*x+(-4/5)*x-6 = 0
6/5*x-6 = 0 // + 6
6/5*x = 6 // : 6/5
x = 6/6/5
x = 5
x = 5
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