If x = 7a −3b + 5c; y= 2a −3b −4c and z = c −4a + b; find x − y + z
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Answer:
1a - 5b + 2c
Step-by-step explanation:
=> 7a - 3b + 5c - 2a - 3b - 4c + c - 4a + b
=> 1a - 5b + 2c
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