Question

find x if 2-³ = 1/2x​

Answer 1

$x = 4$

Step-by-step explanation:

$Given, \\ {2}^{ - 3} = \frac{1}{2x} \\ \frac{1}{ {2}^{3} } = \frac{1}{2x} \\ \frac{1}{8} = \frac{1}{2x} \\ 2x = 8 \\ x = 4$

Answer 2

2^-2 = 1/2^x
2^-2 = 2^-x
2= 2 ( so now we can evaluate the power )

-3= -x
x= 3