document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=155517>Question 155517</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me answer this: abs(4a+7)<13<BR>\n" );
document.write( "I got -5<a<3/7. I am not sure if this is right. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #114532 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=114532\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> abs(4a+7)<13<BR>\n" );
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document.write( "Solve the EQUALITY: <BR>\n" );
document.write( "4a+7 = 13 or 4a+7 = -13<BR>\n" );
document.write( "a = 3/2 or a = -5<BR>\n" );
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document.write( "Draw a Number line and plot the points a = -5 and 3/2<BR>\n" );
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document.write( "Check a value from each of resulting three intervals in the INEQUALITY <BR>\n" );
document.write( "to see where the solution set is.<BR>\n" );
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document.write( "Let a = -6, then |4*-6+7| <13; false, so no solutions in (-inf,-5)<BR>\n" );
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document.write( "Let a = 0, then |4*0+7} < 13 ; true, so solutions in (-5,3/2)<BR>\n" );
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document.write( "Let a = 2 then |4*2+7| < 13 ; false, so no solutions in (3/2,+inf)<BR>\n" );
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document.write( "Final Answer: -5 < a < 3/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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