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3.5^(x)=12.25
We move all terms to the left:
3.5^(x)-(12.25)=0
We add all the numbers together, and all the variables
3.5^x-12.25=0
We move all terms containing x to the left, all other terms to the right
3.5^x=12.25
x=12.25/1
x=12.25
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