Question

Answer should be -2 ..
Find z ..
Step by step ..​

Answer 1

Answer:

-2

Step-by-step explanation:

by cross multiplication

2-9z(5)=17-4z(4)

10-45z=68-16z

29z=-58

z=-2

Answer 2

Answer:

2-9z/17-4z = 4/5

5(2-9z) = 4(17 - 4z)

10 - 45z = 68 - 16z

10-68 = 45z - 16z

-58 = 29z

z= -58/29

z = -2