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2*x+1/4 = 4*x-(3/20) // - 4*x-(3/20)
2*x-(4*x)+1/4+3/20 = 0
2*x-4*x+1/4+3/20 = 0
2/5-2*x = 0 // - 2/5
-2*x = -2/5 // : -2
x = -2/5/(-2)
x = 1/5
x = 1/5
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