7-3n=28

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Solution for 7-3n=28 equation: 


n in (-oo:+oo)

7-(3*n) = 28 // - 28

7-(3*n)-28 = 0

7-3*n-28 = 0

-3*n-21 = 0 // + 21

-3*n = 21 // : -3

n = 21/(-3)

n = -7

n = -7

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