What number must be subtracted from (3x - 4y - z+6 )to get (x+ y- 3 z +6)
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Step-by-step explanation:
•
• •The required number=
(3x-4y-z+6) - (x+y-3x+6)
=3x-4y-z+6-x-y+3z-6
=(2x-5y+2z).ans.
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