7n-150+n=20n-80-40n

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Solution for 7n-150+n=20n-80-40n equation: 



7n-150+n=20n-80-40n

We move all terms to the left:

7n-150+n-(20n-80-40n)=0

We add all the numbers together, and all the variables

7n+n-(-20n-80)-150=0

We add all the numbers together, and all the variables

8n-(-20n-80)-150=0

We get rid of parentheses

8n+20n+80-150=0

We add all the numbers together, and all the variables

28n-70=0

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

28n=70

n=70/28

n=2+1/2

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