n+7+3n+4+2n-7+n=90

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Solution for n+7+3n+4+2n-7+n=90 equation:



n+7+3n+4+2n-7+n=90
We move all terms to the left:
n+7+3n+4+2n-7+n-(90)=0
We add all the numbers together, and all the variables
7n-86=0
We move all terms containing n to the left, all other terms to the right
7n=86
n=86/7
n=12+2/7

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