document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=548014>Question 548014</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve each system by substitution. check your answers.<BR>\n" );
document.write( "1. {y=x+1<BR>\n" );
document.write( "   {2x+y=7\r<BR>\n" );
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document.write( "2. {x=y-2<BR>\n" );
document.write( "   {3x-y=6 </SPAN>\n" );
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document.write( "   y=x+1  ---1<BR>\n" );
document.write( "   2x+y=7 ----2<BR>\n" );
document.write( "substitute 1st equation in 2<BR>\n" );
document.write( "  2x+x+1=7<BR>\n" );
document.write( "  3x=7-1=6<BR>\n" );
document.write( "  x=6/3=2<BR>\n" );
document.write( "  y=6+1=7\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "2.  x=y-2   ---1<BR>\n" );
document.write( "    3x-y=6 ----2<BR>\n" );
document.write( "substitute 1st equation in 2<BR>\n" );
document.write( "  3(y-2)-y=6<BR>\n" );
document.write( "  2y-6=6 =>2y=12 =>y=6<BR>\n" );
document.write( "  x=6-2=4 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );