document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=176670>Question 176670</A>: <I><SPAN STYLE=\"word-break: break-all;\"> .66x-.75y=-8<BR>\n" );
document.write( ".33x+.5y=17<BR>\n" );
document.write( "How do you solve by substitution?<BR>\n" );
document.write( "Show work? </SPAN>\n" );
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document.write( ".33x+.5y=17<BR>\n" );
document.write( "First you need to represent eith the x or the y unknown in terms of the other unknown.<BR>\n" );
document.write( ".33x=17-.5y<BR>\n" );
document.write( "x=(17-.5y)/.33<BR>\n" );
document.write( "Now replace x in the other equation with (17-5y)/.33 & solve for y.<BR>\n" );
document.write( ".66(17-.5y)/.33-.75y=-8<BR>\n" );
document.write( "2(17-.5y)-.75y=-8<BR>\n" );
document.write( "34-y-.75y=-8<BR>\n" );
document.write( "-1.75y=-8-34<BR>\n" );
document.write( "-1.75y=-42<BR>\n" );
document.write( "y=-42/-1.75<BR>\n" );
document.write( "y=24 ans.<BR>\n" );
document.write( "x=(17-.5*24)/.33<BR>\n" );
document.write( "x=(17-12)/.33<BR>\n" );
document.write( "x=5/.33<BR>\n" );
document.write( "x=15.1515<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );