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a+0.81=6.30
We move all terms to the left:
a+0.81-(6.30)=0
We add all the numbers together, and all the variables
a+0.81-(6.3)=0
We add all the numbers together, and all the variables
a-5.49=0
We move all terms containing a to the left, all other terms to the right
a=5.49
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