3x 5 5x 20 July 8, 2019 16 32 64 128 3x 5 5x 20 180 4 2x 5 )- 3x 5x 20 〖log〗_ 5 (3x+2)-〖log〗_ 5 (5x-20)=0 3x 5 4 5x 20 2 3 x-5=x+3