Question

find x so that
please answer​

Answer 1

Answer:

543

Step-by-step explanation:

hope it is helpful to you

Answer 2

Answer:

$x = 1.5$

Step-by-step explanation:

${ \frac{1}{3} }^{ - 5} \times { \frac{1}{3} }^{7} = { \frac{1}{3} }^{2x - 1} \\ \\ { \frac{1}{3} }^{ - 5 + 7} = { \frac{1}{3} }^{2x - 1}$

${ \frac{1}{3} }^{2} = { \frac{1}{3} }^{2x - 1}$

When bases are equal , powers can be equated

$2x - 1 = 2 \\ \\ 2x = 3$

$x = \frac{3}{2} \\ \\ x = 1.5$

Hope it helps