Question

Suppose a + b = 0. Which one of these expressions equals a-b?

Answer 1

There is no attached file to look at the choices. I’m looking forward to answer your question.

Answer 2

For this case we have:

Given
`a + b = 0`, we want to find an expression equivalent to
`a-b`.

Let the equation
`a + b = 0`be:

Subtract -2b on both sides of the equation:

`a + b-2b = 0-2b`

Taking into account that different signs are subtracted and the sign of the major is placed:

`a-b = -2b`

Thus, an expression equivalent to
`a-b` is
`-2b`.

Answer:

-2b