Questions: Solve.
10 e^(5-x)+9=29
If the answer is not an integer, enter it as a decimal rounded to the nearest hundredth, if needed.
x=
Transcript text: Solve.
\[
10 e^{5-x}+9=29
\]
If the answer is not an integer, enter it as a decimal rounded to the nearest hundredth, if needed.
\[
x=
\]
Solution
Solution Steps
To solve the equation \(10 e^{5-x} + 9 = 29\), we first isolate the exponential term by subtracting 9 from both sides. Then, divide by 10 to solve for the exponential expression. Next, take the natural logarithm of both sides to solve for \(x\).
Step 1: Isolate the Exponential Term
Starting with the equation:
\[
10 e^{5-x} + 9 = 29
\]
we subtract 9 from both sides:
\[
10 e^{5-x} = 20
\]
Step 2: Solve for the Exponential Expression
Next, we divide both sides by 10:
\[
e^{5-x} = 2
\]
Step 3: Take the Natural Logarithm
Taking the natural logarithm of both sides gives us:
\[
5 - x = \ln(2)
\]
Step 4: Solve for \(x\)
Rearranging the equation to solve for \(x\):
\[
x = 5 - \ln(2)
\]
Calculating the value, we find:
\[
x \approx 4.3069
\]
Rounding to the nearest hundredth, we have:
\[
x \approx 4.31
\]