9/4n+20-7/4n=42

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Solution for 9/4n+20-7/4n=42 equation: 


n in (-oo:+oo)

(9/4)*n-((7/4)*n)+20 = 42 // - 42

(9/4)*n-((7/4)*n)-42+20 = 0

(9/4)*n+(-7/4)*n-42+20 = 0

1/2*n-22 = 0 // + 22

1/2*n = 22 // : 1/2

n = 22/1/2

n = 44

n = 44

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