1+6n=-7n+40

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Solution for 1+6n=-7n+40 equation: 


n in (-oo:+oo)

6*n+1 = 40-7*n // - 40-7*n

6*n-(-7*n)-40+1 = 0

6*n+7*n-40+1 = 0

13*n-39 = 0 // + 39

13*n = 39 // : 13

n = 39/13

n = 3

n = 3

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