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It's not so amazing that you can divide both sides by the same quantity.

What IS special is the fact that after you do that, the two sides are still

equal. And it also works for addition, subtraction, and multiplication.

Right there in a nutshell is the whole story of working with equations and

solving them. It all rests on the axiom from Algebra that says ...

If equals are (added to)/(subtracted from)/(multiplied by)/(divided by) equals,

then the results are equal.

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11y ago

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Related Questions

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