document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=227488>Question 227488</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi can you help me solve this equation by substitution\r<BR>\n" );
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document.write( "3b+2a=2<BR>\n" );
document.write( "-2b+a=8 </SPAN>\n" );
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document.write( "3b+2a=2 (eqn 1)<BR>\n" );
document.write( "-2b+a=8 (eqn 2)\r<BR>\n" );
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document.write( "from eqn 2; <BR>\n" );
document.write( "a=8+2b<BR>\n" );
document.write( "Subst. eqn2 to eqn1\r<BR>\n" );
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document.write( "3b+2(8+2b)=2<BR>\n" );
document.write( "3b+16+4b=2<BR>\n" );
document.write( "7b=2-16<BR>\n" );
document.write( "7b=-14<BR>\n" );
document.write( "b=-2\r<BR>\n" );
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document.write( "since b=-2 ;<BR>\n" );
document.write( "a=8+(-2)<BR>\n" );
document.write( "a=6 </SPAN>\n" );
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