8r/7

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Solution for 8r/7 equation: 


r in (-oo:+oo)

8 < r/7 // - r/7

8-(r/7) < 0

8-1/7*r < 0 // - 8

-1/7*r < -8 // : -1/7

r > -8/(-1/7)

r > 56

r in (56:+oo)

(56:+oo)

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