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-a/11=1/11
We move all terms to the left:
-a/11-(1/11)=0
We add all the numbers together, and all the variables
-a/11-(+1/11)=0
We get rid of parentheses
-a/11-1/11=0
We multiply all the terms by the denominator
-a-1=0
We add all the numbers together, and all the variables
-1a-1=0
We move all terms containing a to the left, all other terms to the right
-a=1
a=1/-1
a=-1
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