document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=162564>Question 162564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how would you do the equation <BR>\n" );
document.write( "3x+21=5x+15? <BR>\n" );
document.write( "by doing the subtract from each side for example <BR>\n" );
document.write( "z-4=56\r<BR>\n" );
document.write( "\n" );
document.write( "3x+21=5x+15<BR>\n" );
document.write( "3x+21-21=5x+15-21<BR>\n" );
document.write( "3x+0=5x-6<BR>\n" );
document.write( "3x-5x=5x-5x-6<BR>\n" );
document.write( "-2x=0-6<BR>\n" );
document.write( "-2x/-2=-6/-2<BR>\n" );
document.write( "x=3\r<BR>\n" );
document.write( "\n" );
document.write( "Check:<BR>\n" );
document.write( "3x+21  ?  5x+15<BR>\n" );
document.write( "3(3)+21  ? 5(3)+15<BR>\n" );
document.write( "9+21  ?  15+15<BR>\n" );
document.write( "30 = 30  Check, answer is right!<BR>\n" );
document.write( "z-4+4=56+4<BR>\n" );
document.write( "z=60<BR>\n" );
document.write( " </SPAN>\n" );
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