Question

2 - 9 Z by 17 - 4 Z is equal to 4 by 5​

Answer 1

Answer:

z=-2

Explanation:

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

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

=> 10-45z=68-16z

=> -45z +16z = 68-10

=> -29z = 58

=> z = 58/(-29)

=> z = -2

Therefore,

z = -2

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