I think it's A! definitely not C or D
x=3, you can find this by using finding common bases for equation b because 243=3^5. Because of that you can get rid of three on both sides to get the equation 2x-1=5 and then just solve for x to get x=3. For the first equation 5^3=625 so that also proves x=3.
Sorry if my explanation is a little disorganized if you need more help feel free to ask
I’m doing this too hopefully someone answers quick cause I’m confused also.
Answer:
ertyui
Step-by-step explanation:
