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1.25 = (x-20)/17 // - (x-20)/17
1.25-((x-20)/17) = 0
(-1*(x-20))/17+1.25 = 0
(-1*(x-20))/17+(1.25*17)/17 = 0
1.25*17-1*(x-20) = 0
41.25-x = 0
(41.25-x)/17 = 0
(41.25-x)/17 = 0 // * 17
41.25-x = 0
41.25-x = 0 // - 41.25
-x = -41.25 // * -1
x = 41.25
x = 41.25
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