AS Exponential and Logs question?

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x_mooi_x

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Solve each of the following equations to find x in terms of a where a>0 and a does not equal 100:
a) a^x = 10^(2x+1)
b) 2log(2x) = 1+log a

Please show your working so that I can understand the answer. Thank you =)
 
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