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-1/2=a=5/8
We move all terms to the left:
-1/2-(a)=0
We add all the numbers together, and all the variables
-1a-1/2=0
We multiply all the terms by the denominator
-1a*2-1=0
Wy multiply elements
-2a-1=0
We move all terms containing a to the left, all other terms to the right
-2a=1
a=1/-2
a=-1/2
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