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How do you solve #9^x=3^(x-2)#?

1 Answer

Apr 3, 2018

#x=-2#

Explanation:

We got: #9^x=3^(x-2)#

And so:

#(3^2)^x=3^(x-2)#

#3^(2x)=3^(x-2)#

#2x=x-2#

#2x-x=-2#

#x=-2#

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