document.write( "Question 253668: If x=2y+3 and 4x-5y=9,what is the value of y?
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Algebra.Com's Answer #186011 by checkley77(12844)\"\" \"About 
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x=2y+3
\n" ); document.write( "x-2y=3 now multiply this equation by -4 & add.
\n" ); document.write( "4x-5y=9
\n" ); document.write( "-4x+8y=-12
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\n" ); document.write( "3y=-3
\n" ); document.write( "y=-1 ans.
\n" ); document.write( "x=2*-1=3
\n" ); document.write( "x=-2+3
\n" ); document.write( "x=1 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "4*1-5*-1=9
\n" ); document.write( "4+5=9
\n" ); document.write( "9=9
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