5n+2(5-n)=40-7n

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Solution for 5n+2(5-n)=40-7n equation: 



5n+2(5-n)=40-7n

We move all terms to the left:

5n+2(5-n)-(40-7n)=0

We add all the numbers together, and all the variables

5n+2(-1n+5)-(-7n+40)=0

We multiply parentheses

5n-2n-(-7n+40)+10=0

We get rid of parentheses

5n-2n+7n-40+10=0

We add all the numbers together, and all the variables

10n-30=0

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

10n=30

n=30/10

n=3

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