-140=7n-7

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Solution for -140=7n-7 equation: 



-140=7n-7

We move all terms to the left:

-140-(7n-7)=0

We get rid of parentheses

-7n+7-140=0

We add all the numbers together, and all the variables

-7n-133=0

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

-7n=133

n=133/-7

n=-19

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