SOLUTION: 2^(x-1)=8
Algebra
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Question 950352
:
2^(x-1)=8
Found 2 solutions by
addingup, MathTherapy
:
Answer by
addingup(3677)
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Solve for x:
2^(x-1) = 8
To eliminate the exponential from the left hand side, take the logarithm base 2 of both sides:
for n element Z
Now let's solve for x, add 1 to both sides:
Answer:
for n element Z
Answer by
MathTherapy(10552)
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Show Source
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put this solution on YOUR website!
2^(x-1)=8
------ Converting 8 to
x - 1 = 3 ------- Bases are equal, and so are their exponents
x = 3 + 1, or
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