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4(0.25n-3)=-0.25(12-6n)
We move all terms to the left:
4(0.25n-3)-(-0.25(12-6n))=0
We add all the numbers together, and all the variables
4(0.25n-3)-(-0.25(-6n+12))=0
We multiply parentheses
0n-(-0.25(-6n+12))-12=0
We calculate terms in parentheses: -(-0.25(-6n+12)), so:We add all the numbers together, and all the variables
-0.25(-6n+12)
We multiply parentheses
1.5n-3
Back to the equation:
-(1.5n-3)
n-(1.5n-3)-12=0
We get rid of parentheses
n-1.5n+3-12=0
We add all the numbers together, and all the variables
-0.5n-9=0
We move all terms containing n to the left, all other terms to the right
-0.5n=9
n=9/-0.5
n=-18
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