-4(2n+5)-2=-21-7n

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Solution for -4(2n+5)-2=-21-7n equation: 



-4(2n+5)-2=-21-7n

We move all terms to the left:

-4(2n+5)-2-(-21-7n)=0

We add all the numbers together, and all the variables

-4(2n+5)-(-7n-21)-2=0

We multiply parentheses

-8n-(-7n-21)-20-2=0

We get rid of parentheses

-8n+7n+21-20-2=0

We add all the numbers together, and all the variables

-1n-1=0

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

-n=1

n=1/-1

n=-1

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