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0.5^x=0.12
We move all terms to the left:
0.5^x-(0.12)=0
We add all the numbers together, and all the variables
0.5^x-0.12=0
We move all terms containing x to the left, all other terms to the right
0.5^x=0.12
x=0.12/1
x=0.12
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