Answer:
[tex]z=-2[/tex]
Step-by-step explanation:
[tex]5 - 5z = 15[/tex]
Subtract 5 from both sides:-
[tex]5-5z-5=15-5[/tex]
[tex]-5z=10[/tex]
Divide both sides by -5:-
[tex]\frac{-5z}{-5}=\frac{10}{-5}[/tex]
OAmalOHopeO
z=-2
5-5z=15
-5z=15-5
-5z=10
z=10/-5
