subtracting inequalities

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
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Source: — Quantitative Reasoning |

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by Tani » Thu Aug 12, 2010 10:35 am
Your comment is out of context. I would need to see what they are saying exactly. There are ways to handle inequalities, but they result in several options. Can you give me an example of a problem where they are saying that?
Tani Wolff

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by Jinglander » Thu Aug 12, 2010 12:10 pm
Honestly they just said don't do it. No subtracting them or dividing. Motions only if u know the signs. Adding is always ok. Perhaps you could explain when they can and cannot be subtracted or divided