42=2(n-1)+3n

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Solution for 42=2(n-1)+3n equation: 



42=2(n-1)+3n

We move all terms to the left:

42-(2(n-1)+3n)=0



We calculate terms in parentheses: -(2(n-1)+3n), so:

2(n-1)+3n

We add all the numbers together, and all the variables

3n+2(n-1)

We multiply parentheses

3n+2n-2

We add all the numbers together, and all the variables

5n-2

Back to the equation:

-(5n-2)



We get rid of parentheses

-5n+2+42=0

We add all the numbers together, and all the variables

-5n+44=0

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

-5n=-44

n=-44/-5

n=8+4/5

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