7n+45=4n+15

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Solution for 7n+45=4n+15 equation: 



7n+45=4n+15

We move all terms to the left:

7n+45-(4n+15)=0

We get rid of parentheses

7n-4n-15+45=0

We add all the numbers together, and all the variables

3n+30=0

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

3n=-30

n=-30/3

n=-10

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