40=2(5+3n)

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Solution for 40=2(5+3n) equation: 



40=2(5+3n)

We move all terms to the left:

40-(2(5+3n))=0

We add all the numbers together, and all the variables

-(2(3n+5))+40=0



We calculate terms in parentheses: -(2(3n+5)), so:

2(3n+5)

We multiply parentheses

6n+10

Back to the equation:

-(6n+10)



We get rid of parentheses

-6n-10+40=0

We add all the numbers together, and all the variables

-6n+30=0

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

-6n=-30

n=-30/-6

n=+5

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