1/2(30-n)=4

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Solution for 1/2(30-n)=4 equation: 


n in (-oo:+oo)

(1/2)*(30-n) = 4 // - 4

(1/2)*(30-n)-4 = 0

1/2*(30-n)-4 = 0

1/2*(30-n)-4 = 0

11-1/2*n = 0

11-1/2*n = 0

11-1/2*n = 0 // - 11

-1/2*n = -11 // : -1/2

n = -11/(-1/2)

n = 22

n = 22

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