5n+4n=-7

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Solution for 5n+4n=-7 equation: 



5n+4n=-7

We move all terms to the left:

5n+4n-(-7)=0

We add all the numbers together, and all the variables

9n+7=0

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

9n=-7

n=-7/9

n=-7/9

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