R/7=-1/7

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Solution for R/7=-1/7 equation: 


R in (-oo:+oo)

R/7 = -1/7 // + -1/7

R/7-(-1/7) = 0

R/7+1/7 = 0

1/7*R+1/7 = 0 // - 1/7

1/7*R = -1/7 // : 1/7

R = -1/7/1/7

R = -1

R = -1

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