SOLUTION: Solve 9^7x - 2 = 27. How do I do this?
Algebra
->
Exponents
-> SOLUTION: Solve 9^7x - 2 = 27. How do I do this?
Log On
Algebra: Exponents and operations on exponents
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Exponents
Question 932818
:
Solve 9^7x - 2 = 27. How do I do this?
Answer by
stanbon(75887)
(
Show Source
):
You can
put this solution on YOUR website!
9^(7x - 2) = 27
------
(3^2)^(7x-2) = 3^3
------
3^(14x-4) = 3^3
------
14x-4 = 3
14x = 7
x = 1/2
------------------
Cheers,
Stan H.
------------------