Q. Find `x` value from the equation 3(7−2x)=5(4x+11)
Take Logarithm: Take the natural logarithm of both sides of the equation to utilize the property of logarithms that allows us to bring down the exponents.ln(37−2x)=ln(54x+11)
Apply Property: Apply the logarithmic property ln(ab)=b⋅ln(a) to both sides.(7−2x)⋅ln(3)=(4x+11)⋅ln(5)
Distribute Logarithms: Distribute the natural logarithms on both sides.7ln(3)−2xln(3)=4xln(5)+11ln(5)
Rearrange Equation: Rearrange the equation to group like terms and isolate the variable x on one side.−2xln(3)−4xln(5)=11ln(5)−7ln(3)
Factor Out X: Factor out the x on the left side of the equation.x∗(−2∗ln(3)−4∗ln(5))=11∗ln(5)−7∗ln(3)
Divide by Coefficient: Divide both sides by the coefficient of x to solve for x.x=−2ln(3)−4ln(5)11ln(5)−7ln(3)
Calculate Value: Calculate the value of x using the values of natural logarithms.x≈−2⋅ln(3)−4⋅ln(5)11⋅ln(5)−7⋅ln(3)x≈−2⋅1.09861−4⋅1.6094411⋅1.60944−7⋅1.09861x≈−2.19722−6.4377617.70384−7.68927x≈−8.6349810.01457x≈−1.1598
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