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Mathematics, 04.01.2020 16:31 srshelton

Why do we multiply equations by -1? for example, if you need to re-arrange 2x + y = 3 into the form of (y=mx+ i got y = 3 - 2x but the answer is 2x - 3 (it is multiplied by one.)

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Why do we multiply equations by -1? for example, if you need to re-arrange 2x + y = 3 into the form...

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