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(2/5)*(3*x-1) = 2*x-1 // - 2*x-1
(2/5)*(3*x-1)-(2*x)+1 = 0
(2/5)*(3*x-1)-2*x+1 = 0
2/5*(3*x-1)-2*x+1 = 0
2/5*(3*x-1)-2*x+1 = 0
1-4/5*x-2/5 = 0
3/5-4/5*x = 0
3/5-4/5*x = 0
3/5-4/5*x = 0 // - 3/5
-4/5*x = -3/5 // : -4/5
x = -3/5/(-4/5)
x = 3/4
x = 3/4
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