n/2+7=12

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Solution for n/2+7=12 equation: 


n in (-oo:+oo)

n/2+7 = 12 // - 12

n/2-12+7 = 0

1/2*n-5 = 0 // + 5

1/2*n = 5 // : 1/2

n = 5/1/2

n = 10

n = 10

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