If A=2x-3Y+4z; B=5x-6y+7zC=-x-y+zfindA+B+C
algebra
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Step-by-step explanation:
A = 2x - 3y + 4z
B = 5x - 6y + 7z
C = -x -y +z
A + B + C = 2x - 3y + 4z + 5x - 6y + 7z - x - y + z
= 6x - 10y + 12z
= 2(3x - 5y + 6z)
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