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4.50.25a+0.5=4.50
We move all terms to the left:
4.50.25a+0.5-(4.50)=0
We add all the numbers together, and all the variables
4.50.25a+0.5-(4.5)=0
We add all the numbers together, and all the variables
1.125a-4=0
We move all terms containing a to the left, all other terms to the right
1.125a=4
a=4/1.125
a=3+0.625/1.125
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