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3^x+2=243

 Jul 3, 2016
 #1
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 I believe this might be

 

3^(x+2)= 243         if so, we have that  243 = 3^5    ....so we can write

 

3^(x + 2)  = 3^5      we can just equate exponents, since the bases are the same

 

x + 2    = 5             subtract 2 from both sides

 

x  = 3

 

 

 

cool cool cool

 Jul 3, 2016

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