SOLUTION: Solve for x. Round to the nearest hundredth.
3*4^x-1 + 7=316
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Question 1194296: Solve for x. Round to the nearest hundredth.
3*4^x-1 + 7=316
Answer by math_tutor2020(3816) (Show Source): You can put this solution on YOUR website!
It appears the equation is
If that is the case, then you should use parenthesis to indicate only the "x-1" is the exponent. So you should write 3*4^(x-1)+7 = 316
Here is one way to solve for x.
Subtract 7 from both sides
Divide both sides by 3
Apply the log to both sides so you can pull down the exponent (see the next step)
Pull down the exponent using the rule log(x^y) = y*log(x)
Divide both sides by log(4)
Use your calculator. This value is approximate to 6 decimal places.
Add 1 to both sides
Rounding to the nearest hundredth (aka 2 decimal places)
Answer:
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