N/21=7

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Solution for N/21=7 equation: 


N in (-oo:+oo)

N/21 = 7 // - 7

N/21-7 = 0

1/21*N-7 = 0 // + 7

1/21*N = 7 // : 1/21

N = 7/1/21

N = 147

N = 147

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