find x:y:z if 4x+y-3z=0,2x-y-z=0
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4x+ y-3z=0----->>1. 2x-y-z=0------>>2. 1+2. 6x-4z=0 . 6x=4z. x=2/3z. 4(2/3z)+y-3z=0. 8z/3+y-3z=0.
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