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15.32 = (2.5/100)*x // - (2.5/100)*x
15.32-((2.5/100)*x) = 0
15.32-0.025*x = 0
15.32-0.025*x = 0 // - 15.32
-0.025*x = -15.32 // : -0.025
x = -15.32/(-0.025)
x = 612.8
x = 612.8
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