document.write( "Question 232927: solve by substitution 4x+5y= -9
\n" ); document.write( " -2x+y=15 what is the solution set , I came up with (-2,4) am I right
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Algebra.Com's Answer #172017 by rfer(16322)\"\" \"About 
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Give it another try.
\n" ); document.write( "The answer is (-6,3)
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