20=-2(2+2n)-2(1-4n)

Solution for 20=-2(2+2n)-2(1-4n) equation:

20=-2(2+2n)-2(1-4n)

We move all terms to the left:

20-(-2(2+2n)-2(1-4n))=0

We add all the numbers together, and all the variables

-(-2(2n+2)-2(-4n+1))+20=0


We calculate terms in parentheses: -(-2(2n+2)-2(-4n+1)), so:

-2(2n+2)-2(-4n+1)

We multiply parentheses

-4n+8n-4-2

We add all the numbers together, and all the variables

4n-6

Back to the equation:

-(4n-6)


We get rid of parentheses

-4n+6+20=0

We add all the numbers together, and all the variables

-4n+26=0

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

-4n=-26

n=-26/-4

n=6+1/2