5n+7n=-72

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Solution for 5n+7n=-72 equation: 



5n+7n=-72

We move all terms to the left:

5n+7n-(-72)=0

We add all the numbers together, and all the variables

12n+72=0

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

12n=-72

n=-72/12

n=-6

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