document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=237335>Question 237335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the sum of a first number and a second number is 280. The second number is equal to 400 decreased by three times the first number. </SPAN>\n" );
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document.write( "Hello, <BR>\n" );
document.write( "First, let's look at what you know. Both numbers equal 280. Let x be the first number and second number will be 400-3x. Now we can write out the equation:<BR>\n" );
document.write( "x + 400 - 3x = 280  Combine like terms and subtract 400 from both sides. <BR>\n" );
document.write( "-2x = -120  Now get x alone:<BR>\n" );
document.write( "x = 60\r<BR>\n" );
document.write( "\n" );
document.write( "RJ Toftness<BR>\n" );
document.write( "www.math-unlock.com<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );