180=4(2n-9)+4n

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Solution for 180=4(2n-9)+4n equation:



180=4(2n-9)+4n
We move all terms to the left:
180-(4(2n-9)+4n)=0
We calculate terms in parentheses: -(4(2n-9)+4n), so:
4(2n-9)+4n
We add all the numbers together, and all the variables
4n+4(2n-9)
We multiply parentheses
4n+8n-36
We add all the numbers together, and all the variables
12n-36
Back to the equation:
-(12n-36)
We get rid of parentheses
-12n+36+180=0
We add all the numbers together, and all the variables
-12n+216=0
We move all terms containing n to the left, all other terms to the right
-12n=-216
n=-216/-12
n=+18

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