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4*x-(3/5) = 7 // - 7
4*x-(3/5)-7 = 0
4*x-3/5-7 = 0
4*x-38/5 = 0 // + 38/5
4*x = 38/5 // : 4
x = 38/5/4
x = 19/10
x = 19/10
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