document.write( "Question 172133: The difference between two numbers is 10. If the numbers are doubled, what is the difference between them? \n" ); document.write( "
Algebra.Com's Answer #127164 by solver91311(24713)\"\" \"About 
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One number is x and the other is y. The problem states that the difference is 10, so \"x-y=10\". But if you double the numbers, you have to double the difference as well in order for the equation to remain a true statement.\r
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\n" ); document.write( "\n" ); document.write( "\"2x-2y=20\".\r
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