Q. Find the value of x that solves the equation ln(x+3)−ln2=0.Answer:
Combine logarithms: We are given the equation ln(x+3)−ln(2)=0. To solve for x, we will first combine the logarithms on the left side using the property of logarithms that ln(a)−ln(b)=ln(ba).
Use logarithmic property: Combining the logarithms, we get ln(2x+3)=0. Now, we can use the property that ln(a)=0 implies a=1 to find the value inside the logarithm that makes the equation true.
Set inside equal to 1: Setting the inside of the logarithm equal to 1, we have \frac{x+3}{2} = 1. Now we can solve for x by multiplying both sides of the equation by 2.
Multiply both sides: Multiplying both sides by 2, we get x+3=2×1, which simplifies to x+3=2.
Isolate variable: To isolate x, we subtract 3 from both sides of the equation, giving us x=2−3.
Final solution: Subtracting 3 from 2, we find that x=−1.