4n+7=-9

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Solution for 4n+7=-9 equation: 


n in (-oo:+oo)

4*n+7 = -9 // + 9

4*n+7+9 = 0

4*n+16 = 0 // - 16

4*n = -16 // : 4

n = -16/4

n = -4

n = -4

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