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# The sum of x and y is at least 2 but no more than 5. If the total of

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Re: The sum of x and y is at least 2 but no more than 5. If the total of [#permalink]
Hello, can somebody explain to me why we mulitply the first equation by -2 and not by -3 for example?
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Re: The sum of x and y is at least 2 but no more than 5. If the total of [#permalink]
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Re: The sum of x and y is at least 2 but no more than 5. If the total of [#permalink]
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