-3=2(5+2n)-5(1+n)

Solution for -3=2(5+2n)-5(1+n) equation:

-3=2(5+2n)-5(1+n)

We move all terms to the left:

-3-(2(5+2n)-5(1+n))=0

We add all the numbers together, and all the variables

-(2(2n+5)-5(n+1))-3=0


We calculate terms in parentheses: -(2(2n+5)-5(n+1)), so:

2(2n+5)-5(n+1)

We multiply parentheses

4n-5n+10-5

We add all the numbers together, and all the variables

-1n+5

Back to the equation:

-(-1n+5)


We get rid of parentheses

1n-5-3=0

We add all the numbers together, and all the variables

n-8=0

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

n=8