Answer:z=5 the last option I hope this is helpful to you and anyone else who needs help
Explanation:
2(3z-2)+8=34
Distribute 2 through the parentheses
6z-4+8=34
Calculate the sum
6z+4=34
Move the constant to the right-hand side and change its sign
6z=34-4
Subtract the numbers
6z=30
then Divide both sides of the equation by 6
z=5