Question

Si no saben no respondan
${3}^{9 {}^{x - 2 \: } } = 27 {}^{9 {}^{2x + 1} }$
​

Answer 1

$\\ {3}^{9 ^{x - 2} } = {27}^{9 ^{2x + 1}}$

$\\ {9}^{x - 2} = {3}^{4x + 3}$

$\\ 2x - 4 = 4x + 3$

$\\ 2x - 4x = 3 + 4$

$\\ - 2x = 7$

$\\ x = - \frac{7}{2}$

✓