126=3(5n+6)+3n

Solution for 126=3(5n+6)+3n equation:

126=3(5n+6)+3n

We move all terms to the left:

126-(3(5n+6)+3n)=0


We calculate terms in parentheses: -(3(5n+6)+3n), so:

3(5n+6)+3n

We add all the numbers together, and all the variables

3n+3(5n+6)

We multiply parentheses

3n+15n+18

We add all the numbers together, and all the variables

18n+18

Back to the equation:

-(18n+18)


We get rid of parentheses

-18n-18+126=0

We add all the numbers together, and all the variables

-18n+108=0

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

-18n=-108

n=-108/-18

n=+6