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5*x+(2/5)*x+2/3 = 374/75 // - 374/75
5*x+(2/5)*x+2/3-(374/75) = 0
5*x+(2/5)*x+2/3-374/75 = 0
27/5*x-108/25 = 0 // + 108/25
27/5*x = 108/25 // : 27/5
x = 108/25/27/5
x = 4/5
x = 4/5
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