I'm a little lost... I get all messed up when new things get thrown in please help!

solve

7*3^x=10-3^x

it has to be an exact answer... I don't know how to arrive there!

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- Oct 19th 2008, 04:32 PMxkv8rexponential equation
I'm a little lost... I get all messed up when new things get thrown in please help!

solve

7*3^x=10-3^x

it has to be an exact answer... I don't know how to arrive there! - Oct 19th 2008, 04:39 PMskeeter
$\displaystyle 7 \cdot 3^x = 10 - 3^x

$

$\displaystyle 8 \cdot 3^x = 10$

$\displaystyle 3^x = \frac{5}{4}$

can you finish? - Oct 19th 2008, 04:47 PMxkv8r
I feel a little stupid now... thank you very much for your help!