Respuesta :
Answer:
C. None of the above.
Step-by-step explanation:
x − (−x) + y
x + x + y
= 2x + y.
answer is none of the above
bcz ...
=x-(-x)+y
=x+x+y.....since '-' multiplied by '-' gives '+' ...
=2x+y//
bcz ...
=x-(-x)+y
=x+x+y.....since '-' multiplied by '-' gives '+' ...
=2x+y//
