45=2n+3

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Solution for 45=2n+3 equation: 



45=2n+3

We move all terms to the left:

45-(2n+3)=0

We get rid of parentheses

-2n-3+45=0

We add all the numbers together, and all the variables

-2n+42=0

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

-2n=-42

n=-42/-2

n=+21

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