-18=7n-4

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Solution for -18=7n-4 equation: 



-18=7n-4

We move all terms to the left:

-18-(7n-4)=0

We get rid of parentheses

-7n+4-18=0

We add all the numbers together, and all the variables

-7n-14=0

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

-7n=14

n=14/-7

n=-2

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