Question

А-(-а-б+с)-а-(а-б-с)​

Answer 1

Ответ:

а+а+б-с-а-а+б+с

Пошаговое объяснение:

Answer 2

Ответ: 2б.

Пошаговое объяснение:

а+а+б-с-а-а+б+с=2б

Answer 3

Let's simplify the expression step by step:

1. Distribute the negative sign inside the first set of parentheses: A - (-A + B - C) - A - (A - B - C)

2. Now, let's simplify the inner parentheses by removing the double negatives: A + (A - B + C) - A - (A - B - C)

3. Next, combine like terms within each set of parentheses: A + A - B + C - A - A + B + C

4. Combine the like terms outside the parentheses: (A + A - A) + (-B + B) + (C + C)

5. Simplify further: A + 0 + 2C

6. Finally, simplify the expression: A + 2C

So, the simplified form of the expression is A + 2C.