4n+5=7n-4

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Solution for 4n+5=7n-4 equation: 



4n+5=7n-4

We move all terms to the left:

4n+5-(7n-4)=0

We get rid of parentheses

4n-7n+4+5=0

We add all the numbers together, and all the variables

-3n+9=0

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

-3n=-9

n=-9/-3

n=+3

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