document.write( "Question 614613: SOLVING SYSTEMS by SUBSTITUTION\r
\n" ); document.write( "\n" ); document.write( "Solve each system by substitution. check your answer.
\n" ); document.write( "2x+3y=0
\n" ); document.write( "x+2y=-1
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Algebra.Com's Answer #386916 by asuar010(338)\"\" \"About 
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we solve for x and we get \"x=1-2y\" and substitute and we get
\n" ); document.write( "\"2%281-2y%29%2B3y=0\" then \"2-4y%2B3y=0\" the \"2-y=0\" so y=2 and then x=1-4=-3
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