Question

Find the value of z

plz explain me the question !!

it's urgent​

Answer 1

$\frac{(2-9z)/(17 - 4z){=(4/5)}}$

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

10 - 45z = 68 - 16z

- 45z + 16z = 68 - 10

-29z = 58

29z = -58

z = -2