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1.05^x=2.5
We move all terms to the left:
1.05^x-(2.5)=0
We add all the numbers together, and all the variables
1.05^x-2.5=0
We move all terms containing x to the left, all other terms to the right
1.05^x=2.5
x=2.5/1
x=2.5
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