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3*x+x+14/4-(14/5) = 9/2 // - 9/2
3*x+x+14/4-(14/5)-(9/2) = 0
3*x+x+14/4-14/5-9/2 = 0
4*x-19/5 = 0 // + 19/5
4*x = 19/5 // : 4
x = 19/5/4
x = 19/20
x = 19/20
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