r-4/5=9/4

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Solution for r-4/5=9/4 equation:


r in (-oo:+oo)

r-(4/5) = 9/4 // - 9/4

r-(4/5)-(9/4) = 0

r-4/5-9/4 = 0

r-61/20 = 0 // + 61/20

r = 61/20

r = 61/20

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