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n/5-7=12
We move all terms to the left:
n/5-7-(12)=0
We add all the numbers together, and all the variables
n/5-19=0
We multiply all the terms by the denominator
n-19*5=0
We add all the numbers together, and all the variables
n-95=0
We move all terms containing n to the left, all other terms to the right
n=95
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