if A= x-2y+z, B= -2x+y+z, C= x+y-2z. then find ,A-B
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Step-by-step explanation:
A-B= x-2y+z-(-2x+y+z)
=3x-3y
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Answer:
A-B=3x-3y
x-2y+z+2x-y-z
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