Question

A-(b+c) ,(a+b)-c ,a-(b-c)-d

Answer 1

A+(b-c+d)=a+b-c+d 2)a -(b-c+d)=a-b+c-d 3)a-(b-c-d)=a-b+c+d 4)a-(b+(c-d+k ))=a-(b+c-d+k)=a-b-c+d

Answer 2

A-b-c  .a+b-c  .a-b+c-d

Answer 3

To simplify the given expressions, let's work on each of them step by step:

1. A - (b + c): To simplify this expression, we can distribute the negative sign to both terms inside the parentheses: A - b - c

2. (a + b) - c: Similarly, we can simplify this expression by just removing the parentheses: a + b - c

3. a - (b - c) - d: To simplify this expression, we need to distribute the negative sign to both terms inside the parentheses: a - b + c - d

So, the simplified expressions are:

1. A - (b + c) = A - b - c
2. (a + b) - c = a + b - c
3. a - (b - c) - d = a - b + c - d