9n+7-1=42

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Solution for 9n+7-1=42 equation:



9n+7-1=42
We move all terms to the left:
9n+7-1-(42)=0
We add all the numbers together, and all the variables
9n-36=0
We move all terms containing n to the left, all other terms to the right
9n=36
n=36/9
n=4

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