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1/5 = 5^2-(3*x) // - 5^2-(3*x)
3*x+1/5-5^2 = 0
3*x-124/5 = 0 // + 124/5
3*x = 124/5 // : 3
x = 124/5/3
x = 124/15
x = 124/15
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