4(2n+5)-9n=4(2n+5)-9n

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Solution for 4(2n+5)-9n=4(2n+5)-9n equation: 



4(2n+5)-9n=4(2n+5)-9n

We move all terms to the left:

4(2n+5)-9n-(4(2n+5)-9n)=0

We add all the numbers together, and all the variables

-9n+4(2n+5)-(4(2n+5)-9n)=0

We multiply parentheses

-9n+8n-(4(2n+5)-9n)+20=0



We calculate terms in parentheses: -(4(2n+5)-9n), so:

4(2n+5)-9n

We add all the numbers together, and all the variables

-9n+4(2n+5)

We multiply parentheses

-9n+8n+20

We add all the numbers together, and all the variables

-1n+20

Back to the equation:

-(-1n+20)



We add all the numbers together, and all the variables

-1n-(-1n+20)+20=0

We get rid of parentheses

-1n+1n-20+20=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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