-55=-4n-5n+8

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Solution for -55=-4n-5n+8 equation: 


n in (-oo:+oo)

-55 = 8-4*n-(5*n) // - 8-4*n-(5*n)

5*n-(-4*n)-55-8 = 0

4*n+5*n-55-8 = 0

9*n-63 = 0 // + 63

9*n = 63 // : 9

n = 63/9

n = 7

n = 7

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