document.write( "Question 80979This question is from textbook Algebra I
\n" ); document.write( ": use elimination to solve each system of equations\r
\n" ); document.write( "\n" ); document.write( "One number added to twice another number is 23. Four times the first number added to twice the other number is 38. What are the numbers?
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Algebra.Com's Answer #58116 by checkley75(3666)\"\" \"About 
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X+2Y=23
\n" ); document.write( "4X+2Y=38 MULTIPLY THE FIRST EQUATION BY -1 & ADD THEM.
\n" ); document.write( "-X-2Y=-23
\n" ); document.write( "--------------------
\n" ); document.write( "3X=15
\n" ); document.write( "X=15/3
\n" ); document.write( "X=5 ANSWER.
\n" ); document.write( "5+2Y=23
\n" ); document.write( "2Y=23-5
\n" ); document.write( "2Y=18
\n" ); document.write( "Y=18/2
\n" ); document.write( "Y=9 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "4*5+2*9=38
\n" ); document.write( "20+18=38
\n" ); document.write( "38=38
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