r/4+9=-3

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Solution for r/4+9=-3 equation: 


r in (-oo:+oo)

r/4+9 = -3 // + 3

r/4+3+9 = 0

1/4*r+12 = 0 // - 12

1/4*r = -12 // : 1/4

r = -12/1/4

r = -48

r = -48

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