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1045.95-((1045.95*x)/100) = 617.05 // - 617.05
1045.95-((1045.95*x)/100)-617.05 = 0
1045.95-10.4595*x-617.05 = 0
428.9-10.4595*x = 0 // - 428.9
-10.4595*x = -428.9 // : -10.4595
x = -428.9/(-10.4595)
x = 41.00578422
x = 41.00578422
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