Question

(d) Subtract: (a - b + c) -2(-a+b-c) from 5(a+2b-c)

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Answer 1

Answer:2a+7b-4c

Step-by-step explanation:(a-b+c)-2(-a+b-c) from 5(a+2b-c)

=5(a+2b-c)-[(a-b+c)-2(-a+2b-c)]

=5(a+2b-c)-[a-b+c+2a+4b-2c]

=5a+10b-5c-a+b-c-2a-4b+2c

=5a-a-2a+10b+b-4b-5c-c+2c

=2a+7b-4c