-12n+9=-15n

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Solution for -12n+9=-15n equation:



-12n+9=-15n
We move all terms to the left:
-12n+9-(-15n)=0
We get rid of parentheses
-12n+15n+9=0
We add all the numbers together, and all the variables
3n+9=0
We move all terms containing n to the left, all other terms to the right
3n=-9
n=-9/3
n=-3

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