-1/2n-2=-21/10

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Solution for -1/2n-2=-21/10 equation: 


n in (-oo:+oo)

(-1/2)*n-2 = -21/10 // + -21/10

(-1/2)*n-(-21/10)-2 = 0

(-1/2)*n+21/10-2 = 0

1/10-1/2*n = 0 // - 1/10

-1/2*n = -1/10 // : -1/2

n = -1/10/(-1/2)

n = 1/5

n = 1/5

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