Question

A+b+(-c+d)= m-(n+r)= -(t-s-(-a))

Answer 1

1)a+b-c-d.2)m-n-r.3)-(t-s+a)=-t+s-a.

Answer 2

This equation contains three separate expressions, each separated by an equals sign. Let's simplify each expression one by one:

1. A+b+(-c+d)

We can simplify this expression by combining like terms:

A + b - c + d

2. m-(n+r)

We can simplify this expression by distributing the negative sign:

m - n - r

3. -(t-s-(-a))

We can simplify this expression by removing the double negative and distributing the negative sign:

-a - t + s

Putting it all together, we have:

A + b - c + d = m - n - r = -a - t + s