Assuming your question asks for what values of z satisfy
[tex] \frac{4}{5z} = \frac{1}{5z} -4+6[/tex], we start by simplifying the terms [tex]-4+6[/tex]. This will get us [tex] \frac{4}{5z} = \frac{1}{5z} +2[/tex]
Next, we can multiply both sides by 5z, to get [tex] 4=1+10z[/tex] Subtract 1 on both sides to get [tex] 3=10z [/tex] Finally, we isolate z by dividing both sides by 10.
z=[tex] \frac{3}{10} [/tex]