Mathematics, 16.12.2020 20:20 LtPeridot

Kiran says that a solution to the equation `x-7=3` must also be a solution to the equation `3x-21=9`. Write a convincing explanation as to why this is true. Explain how these are equivalent equations.

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Kiran says that a solution to the equation `x-7=3` must also be a solution to the equation `3x-21=9`...