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124.9-((84.3/84.3)*x^100) = 0
124.9-x^100 = 0
-1*x^100 = -124.9 // : -1
x^100 = 124.9
x^100 = 124.9 // ^ 1/100
abs(x) = 124.9^(1/100)
x = 124.9^(1/100) or x = -124.9^(1/100)
x in { 124.9^(1/100), -124.9^(1/100) }
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