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Which equations are true? A: -x = -x + x + 0 B: -x = 0 + (-x) C: None Of The Above
Answer: B Explanation: if you look at A and try to combine like terms, you will add the -x on the right side the the one on the left, cancelling out the x on the left. then you have 0=x+0, and unless x=0, it is not true. With B, when you add x to the -x, you cancel it out, giving you 0=0, which is true. hope it helps!
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