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4a/9-2=8
We move all terms to the left:
4a/9-2-(8)=0
We add all the numbers together, and all the variables
4a/9-10=0
We multiply all the terms by the denominator
4a-10*9=0
We add all the numbers together, and all the variables
4a-90=0
We move all terms containing a to the left, all other terms to the right
4a=90
a=90/4
a=22+1/2
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