The answer is a - 6b + 4c.
The given equation is a - {5b - [a - (3b - 2c) + c - (a - 2b - c)]}.
To simplify the given equation.
What is simplification?
The process of making something simpler or easier to do or understand.
a - {5b - [a - (3b - 2c) + c - (a - 2b - c)]}.
=a - {5b - [a - 3b + 2c + c - a + 2b + c]}
=a - {5b - a + 3b - 2c - c + a - 2b - c}
=a - 5b + a - 3b + 2c + c - a + 2b + c
=a - 6b + 4c
So, the answer is a - 6b + 4c.
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