SOLUTION: Solve: (3/5)^-x = 125/27. Solve: 7^2x = 1/49 Solve: 5x+1 = 125.

Algebra ->  Trigonometry-basics -> SOLUTION: Solve: (3/5)^-x = 125/27. Solve: 7^2x = 1/49 Solve: 5x+1 = 125.      Log On


   

Question 865279: Solve: (3/5)^-x = 125/27.
Solve: 7^2x = 1/49
Solve: 5x+1 = 125.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve: (3/5)^-x = 125/27
---
(5/3)^x = (5/3)^3
x = 3
---------------------------
Solve: 7^2x = 1/49
7^2x = 7^-2
2x = -2
x = -1
------------------------
Solve: 5^(x+1) = 125
5^(x+1) = 5^3
x+1 = 3
x = 2
-------------------
Cheers,
Stan H.
===================