n-2+n=90

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Solution for n-2+n=90 equation: 



n-2+n=90

We move all terms to the left:

n-2+n-(90)=0

We add all the numbers together, and all the variables

2n-92=0

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

2n=92

n=92/2

n=46

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