5n+7n=18+78

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Solution for 5n+7n=18+78 equation: 



5n+7n=18+78

We move all terms to the left:

5n+7n-(18+78)=0

We add all the numbers together, and all the variables

5n+7n-96=0

We add all the numbers together, and all the variables

12n-96=0

We move all terms containing n to the left, all other terms to the right

12n=96

n=96/12

n=8

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