9*n+2*n=77

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Solution for 9*n+2*n=77 equation:



9n+2n=77
We move all terms to the left:
9n+2n-(77)=0
We add all the numbers together, and all the variables
11n-77=0
We move all terms containing n to the left, all other terms to the right
11n=77
n=77/11
n=7

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