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Halfway joking here, but sometimes there are details that are not relevant to solving the problem. They could set up context, they might be interesting, but they won’t necessarily be important for you …

Here's a fairly simple example of using the elimination method to solve for two variables when you have two equations. The answers do not end up being whole numbers though. The elimination method …

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With absolute value, try to think of it as, “the absolute value of…..” the thing that is inside the absolute value bars. “The” implies it’s one thing. So taking the absolute value of -6 or 6 …