document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=45738>Question 45738</A>: <I><SPAN STYLE=\"word-break: break-all;\"> substitution method\r<BR>\n" );
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document.write( "y=13-3x<BR>\n" );
document.write( "2x+9y=-8 </SPAN>\n" );
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document.write( "       y = 13 - 3x    ----- (1)<BR>\n" );
document.write( " 2x + 9y = -8         ----- (2)\r<BR>\n" );
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document.write( "Substituting value of y in (2) from (1) we get<BR>\n" );
document.write( "   2x+9(13-3x) = -8<BR>\n" );
document.write( "=> 2x+117-27x  = -8<BR>\n" );
document.write( "=> 117-25x     = -8<BR>\n" );
document.write( "=> 117-25x-117 = -8-117  ;(adding -117 to both sides)<BR>\n" );
document.write( "=>        -25x = -125<BR>\n" );
document.write( "=>           x = 5       ;(multiplying both sides by 1/-25)                 \r<BR>\n" );
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document.write( "Substituting the value of x in (1) we get<BR>\n" );
document.write( "      y = 13 - 3(5)<BR>\n" );
document.write( "    =>y = 13 - 15<BR>\n" );
document.write( "    =>y = -2 \r<BR>\n" );
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document.write( "So, Answer is x=5, y=-2 </SPAN>\n" );
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