8/15=8/3r

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Solution for 8/15=8/3r equation: 


r in (-oo:+oo)

8/15 = (8/3)*r // - (8/3)*r

8/15-((8/3)*r) = 0

(-8/3)*r+8/15 = 0

8/15-8/3*r = 0 // - 8/15

-8/3*r = -8/15 // : -8/3

r = -8/15/(-8/3)

r = 1/5

r = 1/5

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