IMathAS-libretexts

Solve the equation below for x. If there are multiple solutions, enter them separated by a comma.

$\displaystyle {4}^{{{5}{x}+{9}}}={4}^{{-{{11}}}}$

x =

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Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity