The correct answer from the task content is; Choice C; None of the above.
<h3>Which of the equations are true?</h3>
The equations can be evaluated as follows;
A) -x + (-x) =0
-x -x = -2x......Not True
B) x -(-x) = 0
x + x = 2x .....Not True.
On this note, it follows that none of the equations is true.
Read more on equations;
brainly.com/question/2972832
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