Given X / 3 = Y / 4 = Z / 5, find the value of x-2y + 5Z / 4x To write process (complete) good additional 10 wealth value

Let X / 3 = Y / 4 = Z / 5 = K,
Then x = 3k, y = 4K, z = 5K
So (x-2y + 5Z) / 4x
=(3k-2*4k+5*5k)/4*3k
=20k/12k
=5/3

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