2-7n+5n=7-55

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Solution for 2-7n+5n=7-55 equation: 



2-7n+5n=7-55

We move all terms to the left:

2-7n+5n-(7-55)=0

We add all the numbers together, and all the variables

-7n+5n+2-(-48)=0

We add all the numbers together, and all the variables

-2n+50=0

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

-2n=-50

n=-50/-2

n=+25

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