Question

Which of the following expressions are equivalent to x − ( − x ) + y ?

Answer 1

2x+y

Explanation:

x-(-x)+y

x+x +y

2x+y

where is the negative sign, there's an invisible 1 and just multiply it. negative by negative equals positive.

Answer 2

(C) None of the Above

Explanation:

give the expressions so people can give valid explanations and answers.