document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=43960>Question 43960</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the pairs of equations by using the substitituion method.\r<BR>\n" );
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document.write( "x + 2y = 10\r<BR>\n" );
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document.write( "x = 3y </SPAN>\n" );
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document.write( "x + 2y = 10<BR>\n" );
document.write( "x = 3y<BR>\n" );
document.write( "substitute 3y in for x in the first equation and get<BR>\n" );
document.write( "3y + 2y = 10<BR>\n" );
document.write( "5y = 10<BR>\n" );
document.write( "y = 2<BR>\n" );
document.write( "and thus <BR>\n" );
document.write( "x = 3y = 6<BR>\n" );
document.write( "Our solution is (6, 2) </SPAN>\n" );
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