Watch this brief video. Note that the take-home message here is that in linear equations, and in other equations you will handle in the future, we can add and multiply same expressions on both sides of the equation. We must do the same thing to each side in order to keep the balance, otherwise we change the solutions to our problem.

Source: Tyler Wallace, https://www.youtube.com/watch?v=4llE6Ai_YBk

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Last modified: Monday, June 7, 2021, 1:48 PM