document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1106669>Question 1106669</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which expression can be substituted for x in the top equation of the system to solve the system of equations by substitution?  What is the solution?\r<BR>\n" );
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document.write( "-3x + 2y = 2\r<BR>\n" );
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document.write( "x + 5y = 22\r<BR>\n" );
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document.write( "Thank you, and each \"/\" symbol is meaning a number over a number since i can't type it that way. Thank you ! Of the 4 choices one is correct:\r<BR>\n" );
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document.write( "1)-5y + 22, (4,2)\r<BR>\n" );
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document.write( "2)-5y + 22, (2,4)\r<BR>\n" );
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document.write( "3)5y + 22, (-4,3)\r<BR>\n" );
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document.write( "4)5y + 22, (2,4) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #721670 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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/cgi-bin/show-face.mpl?user=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=721670\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -3x + 2y = 2 <BR>\n" );
document.write( "x + 5y = 22 subtract 5y from both sides: x = -5y + 22. Now use this for x.<BR>\n" );
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document.write( "-3x + 2y = 2 <BR>\n" );
document.write( "-3(-5y + 22) + 2y = 2<BR>\n" );
document.write( "15y - 66 + 2y = 2<BR>\n" );
document.write( "17y - 66 = 2<BR>\n" );
document.write( "17y = 68<BR>\n" );
document.write( "y = 68/17<BR>\n" );
document.write( "y = 4<BR>\n" );
document.write( "now let's find x:<BR>\n" );
document.write( "x + 5(4) = 22<BR>\n" );
document.write( "x + 20 = 22<BR>\n" );
document.write( "x = 2<BR>\n" );
document.write( "so the answer is -5y + 22, (2,4) </SPAN>\n" );
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