SOLUTION: Please help me solve this problem: {{{ 8^(x+4)= 16^(3x) }}} I've tried setting the bases equal to each other, but the answer I get doesn't match any of the answers provided.

SOLUTION: Please help me solve this problem: {{{ 8^(x+4)= 16^(3x) }}} I've tried setting the bases equal to each other, but the answer I get doesn't match any of the answers provided.

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Question 449616: Please help me solve this problem:
I've tried setting the bases equal to each other, but the answer I get doesn't match any of the answers provided.
Please help?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
8^(x+4)= 16^(3x)
log[8](16)=4/3 the key ingredient.
x+4=4/3 * 3x
x+4=4x
3x=4
x=4/3
.
Ed
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