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250 = (55*(x-1945)^1)/2 // - (55*(x-1945)^1)/2
250-((55*(x-1945)^1)/2) = 0
(-55/2)*(x-1945)+250 = 0
250-55/2*(x-1945) = 0
250-55/2*(x-1945) = 0
107475/2-55/2*x = 0
107475/2-55/2*x = 0
107475/2-55/2*x = 0 // - 107475/2
-55/2*x = -107475/2 // : -55/2
x = -107475/2/(-55/2)
x = 21495/11
x = 21495/11
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