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4/9+1=1a
We move all terms to the left:
4/9+1-(1a)=0
We multiply all the terms by the denominator
-1a*9+4+1*9=0
We add all the numbers together, and all the variables
-1a*9+13=0
Wy multiply elements
-9a+13=0
We move all terms containing a to the left, all other terms to the right
-9a=-13
a=-13/-9
a=1+4/9
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