4n-5n=-7

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



4n-5n=-7
We move all terms to the left:
4n-5n-(-7)=0
We add all the numbers together, and all the variables
-1n+7=0
We move all terms containing n to the left, all other terms to the right
-n=-7
n=-7/-1
n=+7

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