Add: 3a − 4b + 4c, 2a + 3b − 8c, a − 6b + c

Question:

Add:

3a − 4b + 4c, 2a + 3b − 8c, a − 6b + c

Solution:

Writing the terms of the given expressions (in the same order) in the form of rows with like terms below each other and adding column-wise, we get:

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