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2.5-((1/2)*x) = 1/4 // - 1/4
2.5-((1/2)*x)-(1/4) = 0
(-1/2)*x-1/4+2.5 = 0
2.25-1/2*x = 0 // - 2.25
-1/2*x = -2.25 // : -1/2
x = -2.25/(-1/2)
x = 4.5
x = 4.5
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