Ask your own question, for FREE!
Mathematics 28 Online
OpenStudy (anonymous):

Find x. 9^2x = 27^x-1 Can someone walk me through this?

OpenStudy (anonymous):

\(\huge 9^{2x}=27^{x-1}\)

OpenStudy (kaiz122):

to solve for x, you need first to have the same base

OpenStudy (kaiz122):

\[9^{2x}=27^{x-1} \] can also be written as \[3^{(2)(2x)} =3^{(3)(x-1)}\]

OpenStudy (anonymous):

\[(3^2)^(2x) = (3^3)^(x-1)\]

OpenStudy (kaiz122):

4x=3x - 3 then you can go find x

OpenStudy (anonymous):

x = -3? @kaiz122

OpenStudy (kaiz122):

yes.

OpenStudy (anonymous):

Thanks!

OpenStudy (kaiz122):

NP :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!