If 3 / 3 x = 2 / 2 y = 5 / 5 Z, then X-Y + Z is 2x-3y-z=
Let 3 / x = 2 / y = 5 / z = t
∴x=3t,y=2t,z=5t
2x-3y-z of X-Y + Z=
=(6t-6t-5t)/(3t-2t+5t)
=-5t/6t
=-5/6
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