-7/9r=15

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Solution for -7/9r=15 equation: 


r in (-oo:+oo)

(-7/9)*r = 15 // - 15

(-7/9)*r-15 = 0

-7/9*r-15 = 0 // + 15

-7/9*r = 15 // : -7/9

r = 15/(-7/9)

r = -135/7

r = -135/7

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