Thread: ln help please

Can someone walk me through this?

Solve for x using using natural logarithms. Answer should be in decimal approximations rounded to the nearest thousandth.

3 ∙ 7^x = 2 ∙ 5^x

Hey

Originally Posted by Humbled_by_math

Can someone walk me through this?

Solve for x using using natural logarithms. Answer should be in decimal approximations rounded to the nearest thousandth.

3 ∙ 7^x = 2 ∙ 5^x

using ln

ln(3) + x * ln(7) = ln(2) +ln(5)x

solve for x and you get

x = -1.205...

Rapha

Thank you.