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A in (-oo:+oo)
A/100 = 2/25 // - 2/25
A/100-(2/25) = 0
A/100-2/25 = 0
1/100*A-2/25 = 0 // + 2/25
1/100*A = 2/25 // : 1/100
A = 2/25/1/100
A = 8
A = 8
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