Answer
$\dfrac {1}{2}$
Work Step by Step
$2^{6-3x}=8^{x+1}\Rightarrow 2^{6-3x}=\left( 2^{3}\right) ^{x+1}\Rightarrow 2^{6-3x}=2^{3x+3}\Rightarrow 6-3x=3x+3\Rightarrow 6x=3\Rightarrow x=\dfrac {1}{2}$
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