Question

Find the sum by by using column method
-2a +3b 5a +2b -c and -a-b-c
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Answer 1

Answer:

-3a + 15ab - b - 2c

Step-by-step explanation:

       -2a + 15ab + 2b - c

+      -a  +      0     - b - c

=       -3a + 15ab - b - 2c

Answer 2

Step-by-step explanation:

-2a - a + 5a + 3b - b + 2b - c + c

7a - 2b + c