3(5+7n)+3=40-n

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Solution for 3(5+7n)+3=40-n equation: 



3(5+7n)+3=40-n

We move all terms to the left:

3(5+7n)+3-(40-n)=0

We add all the numbers together, and all the variables

3(7n+5)-(-1n+40)+3=0

We multiply parentheses

21n-(-1n+40)+15+3=0

We get rid of parentheses

21n+1n-40+15+3=0

We add all the numbers together, and all the variables

22n-22=0

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

22n=22

n=22/22

n=1

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