Let's solve for x.
3kx+24=9kx
Step 1: Add -9kx to both sides.
3kx+24+−9kx=9kx+−9kx
−6kx+24=0
Step 2: Add -24 to both sides.
−6kx+24+−24=0+−24
−6kx=−24
Step 3: Divide both sides by -6x.
[tex]\frac{-6kx}{-6x}[/tex] = [tex]\frac{-24}{-6k}[/tex]
[tex]x=\frac{4}{k}[/tex]
Answer is: 4/k