Answer is provided in the image attached.
Step-by-step explanation:
3z+ 5 = 35
-5 -5
( 5 minus 5 cancels out: 0)
(35-5=30)
3z=30
3 3
(3 divided by 3 is 1 or you can just leave it as the variable, z.)
(30 divided by 3 is 10)
z = 10
Check:
3z+5 =35
z=10
