1.

(i) a - 2c + b, - a+b, 6a – 4c + b​

Answer»

-STEP EXPLANATION:Correct option isA6a−7b−3cAfter ADDING we GET: (3a−4b+4c)+(2a+3b−8c)+(a−6b+c)=3a+2a+a−4b+3b−6b+4c−8c+c=6a−7b−3cmark as BRAINLIEST



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