5/7r-2=-1

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Solution for 5/7r-2=-1 equation: 


r in (-oo:+oo)

(5/7)*r-2 = -1 // + 1

(5/7)*r-2+1 = 0

5/7*r-1 = 0 // + 1

5/7*r = 1 // : 5/7

r = 1/5/7

r = 7/5

r = 7/5

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