Question

I NEED ANSWERS ASAP PLEASE!!!! 1- 9 + 7z for z 3

Answer 1

Explanation:

1-9+7z z=3

1-9+7(3)

1-9+21

-8+21

13

Answer 2

Explanation:

1- 9 + 7z

1-9+7(3)

-8+21

=13