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a=3900(1+.10(3))
We move all terms to the left:
a-(3900(1+.10(3)))=0
We add all the numbers together, and all the variables
a-(3900(1.103))=0
We add all the numbers together, and all the variables
a-4301.7=0
We move all terms containing a to the left, all other terms to the right
a=4301.7
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