SOLUTION: Solve 2^(2x - 1) = 8^(x + 7).

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Question 217150: Solve
2^(2x - 1) = 8^(x + 7).
Answer by chibisan(131) About Me  (Show Source):
You can put this solution on YOUR website!
2^3 = 8
2^(2x - 1) = 2^3(x + 7)
2^(2x - 1) = 2^(3x + 21)
since the base is same , the index will be equal
2x - 1 = 3x + 21
-1 - 21 = 3x - 2x
-22 = x