Question

I need help but they are getting confused with the z as a 2 please don’t get confused the z is a z

Answer 1

Step-by-step explanation:

everything can be found in the picture

Answer 2

Answer:

w = - (7/2) z

Step-by-step explanation:

5w + 9z = 2z + 3w

Subtract 3w from both sides

2w + 9z = 2z

Subtract 9z from both sides

2w = -7z

Divide both sides by 2

w = - (7/2) z