2n-4=140

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Solution for 2n-4=140 equation: 



2n-4=140

We move all terms to the left:

2n-4-(140)=0

We add all the numbers together, and all the variables

2n-144=0

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

2n=144

n=144/2

n=72

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