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45*x+(27*y)/451 = 15525 // - 15525
45*x+(27*y)/451-15525 = 0
45*x+27/451*y-15525 = 0 // - 27/451*y-15525
45*x = -(27/451*y-15525) // : 45
x = (-(27/451*y-15525))/45
x = (15525-(27/451*y))/45
x = (15525-(27/451*y))/45
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