what should be subtracted from x+2y-3z to get 3x-2y+z
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the desired no that should be subtracted is -2(x-2y+2z)
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Step-by-step explanation:
= x + 2y - 3z - ( 3x - 2y + z )
= x + 2y - 3z - 3x + 2y - z
= ( 1 - 3 ) x + ( 2 + 2 ) y + ( -3 -1 ) z
= -2x + 4y - 4z Ans
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