Question

log(5x+2)-log3x+20)=-1 porfa ayudenme

Answer 1

Respuesta:

log(5x+2)-log3x+20)=-1

$\log _{10}\left(5x+2\right)-\log _{10}\left(3x\right)+20=-1\\\log _{10}\left(5x+2\right)-\log _{10}\left(3x\right)+20+\log _{10}\left(3x\right)=-1+\log _{10}\left(3x\right)\\\log _{10}\left(5x+2\right)+20=-1+\log _{10}\left(3x\right)\\10^{21}\left(5x+2\right)=3x\\\\\\x=-\frac{10^{21}\cdot \:2}{5.0E21}$