3Z+6Z+7=29-4 Please shoe how to solve this

Question

Problem.

Answer 1

3Z+6Z+7=29-4

9Z + 7 = 25
9Z = 25 - 7
9Z = 18
Z = ?

If you post your answer, we'll be glad to check it for you.

Answer 2

Answer: Z2 Thank you

Answer 3

Z = 2

Answer 4

Ms Sue, Thank you very much. I hope you can help with another problem. I get mixed up on changing the plus and minus.
4a+17=a-13. I do know that the second
a is a 1.