7n+20=70-3n

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Solution for 7n+20=70-3n equation: 



7n+20=70-3n

We move all terms to the left:

7n+20-(70-3n)=0

We add all the numbers together, and all the variables

7n-(-3n+70)+20=0

We get rid of parentheses

7n+3n-70+20=0

We add all the numbers together, and all the variables

10n-50=0

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

10n=50

n=50/10

n=5

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