21n-2+9n=7(3n-2)+9n

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Solution for 21n-2+9n=7(3n-2)+9n equation: 



21n-2+9n=7(3n-2)+9n

We move all terms to the left:

21n-2+9n-(7(3n-2)+9n)=0

We add all the numbers together, and all the variables

30n-(7(3n-2)+9n)-2=0



We calculate terms in parentheses: -(7(3n-2)+9n), so:

7(3n-2)+9n

We add all the numbers together, and all the variables

9n+7(3n-2)

We multiply parentheses

9n+21n-14

We add all the numbers together, and all the variables

30n-14

Back to the equation:

-(30n-14)



We get rid of parentheses

30n-30n+14-2=0

We add all the numbers together, and all the variables

12!=0

There is no solution for this equation

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