r/7+1=-3

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Solution for r/7+1=-3 equation: 


r in (-oo:+oo)

r/7+1 = -3 // + 3

r/7+1+3 = 0

1/7*r+4 = 0 // - 4

1/7*r = -4 // : 1/7

r = -4/1/7

r = -28

r = -28

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