7n+42=-2n+87

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Solution for 7n+42=-2n+87 equation: 



7n+42=-2n+87

We move all terms to the left:

7n+42-(-2n+87)=0

We get rid of parentheses

7n+2n-87+42=0

We add all the numbers together, and all the variables

9n-45=0

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

9n=45

n=45/9

n=5

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