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Solve for the exact value of 
x.

3ln(2x+7)+14=20
Answer:

Solve for the exact value of x x .\newline3ln(2x+7)+14=20 3 \ln (2 x+7)+14=20 \newlineAnswer:

Full solution

Q. Solve for the exact value of x x .\newline3ln(2x+7)+14=20 3 \ln (2 x+7)+14=20 \newlineAnswer:
  1. Isolate natural logarithm term: First, we need to isolate the natural logarithm term by subtracting 1414 from both sides of the equation.\newline3ln(2x+7)+1414=20143\ln(2x+7) + 14 - 14 = 20 - 14
  2. Simplify by subtraction: Now, we simplify the equation by performing the subtraction. 3ln(2x+7)=63\ln(2x+7) = 6
  3. Divide to isolate logarithm: Next, we divide both sides of the equation by 33 to isolate the natural logarithm.\newline3ln(2x+7)3=63\frac{3\ln(2x+7)}{3} = \frac{6}{3}
  4. Get logarithm by itself: After dividing, we get the natural logarithm by itself. ln(2x+7)=2\ln(2x+7) = 2
  5. Exponentiate using base e: To eliminate the natural logarithm, we will exponentiate both sides of the equation using the base e. eln(2x+7)=e2e^{\ln(2x+7)} = e^2
  6. Simplify left side: Since eln(x)=xe^{\ln(x)} = x for any xx, we can simplify the left side of the equation.\newline2x+7=e22x+7 = e^2
  7. Isolate term with x: Now, we subtract 77 from both sides to isolate the term with xx.\newline2x+77=e272x + 7 - 7 = e^2 - 7
  8. Simplify by subtraction: Simplify the equation by performing the subtraction. 2x=e272x = e^2 - 7
  9. Divide to solve for x: Finally, we divide both sides by 22 to solve for xx.2x2=e272\frac{2x}{2} = \frac{e^2 - 7}{2}
  10. Get exact value of x: After dividing, we get the exact value of x.\newlinex=e272x = \frac{e^2 - 7}{2}

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