HELP ME PLEASE

2^3x-1 = 4^x

Question

HELP ME PLEASE 

2^3x-1 = 4^x

anonymous · Answer

Do you want to work from the same textbook?

anonymous · Answer

$$2^{3x-1}= 4^{x}$$

anonymous · Answer

Just curious because I'm not positive, but doesn't 4^x need to get changed to 2(2^x)?

jim_thompson5910 · Answer

close DonaldRoyMiller, but not quite

jim_thompson5910 · Answer

since 4 = 2^2 we can say this....

$$\large 2^{3x-1}= 4^{x}$$

$$\large 2^{3x-1}= (2^2)^{x}$$

$$\large 2^{3x-1}= 2^{2x}$$

anonymous · Answer

They need a common base number, right. 

OH< HERE WE GO AGAIN WITH SOMEONE JUST GIVING AN ANSWER !!!!!!!!!!!!!!!!!

jim_thompson5910 · Answer

nope, I didn't give the answer since I didn't finish (you need to solve for x)

jim_thompson5910 · Answer

so please don't jump to conclusions and actually read what I posted

anonymous · Answer

i SEE. Okay. You're right. But it's frustrating at how often that happens.

anonymous · Answer

how do i solve for x??

anonymous · Answer

What you do is ignore the base for now and focus on the exponent.

anonymous · Answer

You aren't going to download the free textbooks are you.

anonymous · Answer

solve 3x-1 = 2x

anonymous · Answer

do i add the 1 to the 2?

anonymous · Answer

You need to know the process, or you're going to have this same problem over and over again. Once you know how it works, you're good to go.

anonymous · Answer

3x and 2x are two numbers being multiplied. So you have to work with likes. The one and the two are constants. They don't change. Know what I mean?