Question

Which equations are true? Option 1: -x + (-x) = 0 Option 2: x - (-x) = 0 Option 3: None of the above.

Answer 1

None of the above

Explanation:

1) -x+(-x) = -x - x = -2x not 0

2) x - (-x) = x+x = 2x

So the answer is none of the above!

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