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Solve for the exact value of 
x.

4ln(7x+3)+19=43
Answer:

Solve for the exact value of x x .\newline4ln(7x+3)+19=43 4 \ln (7 x+3)+19=43 \newlineAnswer:

Full solution

Q. Solve for the exact value of x x .\newline4ln(7x+3)+19=43 4 \ln (7 x+3)+19=43 \newlineAnswer:
  1. Isolate logarithmic expression: First, we need to isolate the logarithmic expression by subtracting 1919 from both sides of the equation.\newline4ln(7x+3)+1919=43194\ln(7x+3) + 19 - 19 = 43 - 19\newline4ln(7x+3)=244\ln(7x+3) = 24
  2. Divide by 44: Next, we divide both sides by 44 to solve for the natural logarithm of (7x+3)(7x+3).4ln(7x+3)4=244\frac{4\ln(7x+3)}{4} = \frac{24}{4}ln(7x+3)=6\ln(7x+3) = 6
  3. Exponentiate both sides: Now, we will exponentiate both sides to remove the natural logarithm, using the property eln(x)=xe^{\ln(x)} = x.\newlineeln(7x+3)=e6e^{\ln(7x+3)} = e^6\newline7x+3=e67x + 3 = e^6
  4. Subtract 33: Subtract 33 from both sides to isolate the term with xx.\newline7x+33=e637x + 3 - 3 = e^{6} - 3\newline7x=e637x = e^{6} - 3
  5. Divide by 77: Finally, divide both sides by 77 to solve for x.\newline7x7=e637\frac{7x}{7} = \frac{e^6 - 3}{7}\newlinex=e637x = \frac{e^6 - 3}{7}

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