document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=138481>Question 138481</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please, ia m not even sure if i am in the right area. Wont someone help me please?????<BR>\n" );
document.write( "Solve the system by the elimination method of these:\r<BR>\n" );
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document.write( "1)  5x + 5y = -11<BR>\n" );
document.write( "    7x - 2y = 13\r<BR>\n" );
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document.write( "2)  0.3x - 0.2y = 4<BR>\n" );
document.write( "    0.2x + 0.5y = 1\r<BR>\n" );
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document.write( "3)  6x - 9y = 13.5<BR>\n" );
document.write( "    7y - 2x = -6.5\r<BR>\n" );
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document.write( "4)  0.05x + 0.25y = 11<BR>\n" );
document.write( "    0.15x + 0.05y = 12\r<BR>\n" );
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document.write( "On these it says \"What is the solution of the system\". (Type an order pair. Type an integer or a decimal. Type N if there is no solution. Type I if there are infinitely many solutions)<BR>\n" );
document.write( " Will someone, anyone, please help me.  I am so confused.  thank you in advance to anyone that will take the time to help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #101102 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=101102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the system by the elimination method of these: <BR>\n" );
document.write( "1)<BR>\n" );
document.write( "5x + 5y = -11<BR>\n" );
document.write( "7x - 2y =  13 <BR>\n" );
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document.write( "Multiply thru the 1st equation by 7; Multiply thru the 2nd equation by 5 to get:<BR>\n" );
document.write( "35x + 35y = -77<BR>\n" );
document.write( "35x - 10y = 65<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Subtract the 2nd equation from the 1st so you can solve for \"y\":<BR>\n" );
document.write( "25y = -142<BR>\n" );
document.write( "y = -142/25<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Substitute that into 5x+5y=-11 so you can solve for \"x\":<BR>\n" );
document.write( "5x + 5(-142/25) = -77<BR>\n" );
document.write( "5x - (142/5) = -77<BR>\n" );
document.write( "5x = -77 + (142/5)<BR>\n" );
document.write( "5x = -243/5<BR>\n" );
document.write( "x = -243/25<BR>\n" );
document.write( "=======================\r<BR>\n" );
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document.write( "2) 0.3x - 0.2y = 4<BR>\n" );
document.write( "0.2x + 0.5y = 1 <BR>\n" );
document.write( "Multiply thru both equations by 10 to get rid of the decimals:<BR>\n" );
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document.write( "3x - 2y = 40<BR>\n" );
document.write( "2x + 5y = 10<BR>\n" );
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document.write( "Multiply the 1st equation by 2; Multiply the 2nd equation by 3 to get:<BR>\n" );
document.write( "6x -4y = 80<BR>\n" );
document.write( "6x +15y = 30<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Subtract the 1st equation from the 2nd to get:<BR>\n" );
document.write( "19y = -50<BR>\n" );
document.write( " y = -50/19<BR>\n" );
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document.write( "Substitute that into 3x-2y=40 to solve for \"x\":<BR>\n" );
document.write( "3x-2(-50/19) = 40<BR>\n" );
document.write( "3x + (100/19) = 40<BR>\n" );
document.write( "3x = 660/19<BR>\n" );
document.write( "x = 220/19<BR>\n" );
document.write( "=======================<BR>\n" );
document.write( "Comment: Maybe you can handle #'s 3 and 4 now.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( "3)<BR>\n" );
document.write( "6x - 9y = 13.5<BR>\n" );
document.write( "7y - 2x = -6.5<BR>\n" );
document.write( "Ans: x = -57/34; y=-89/34<BR>\n" );
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document.write( "4) <BR>\n" );
document.write( "0.05x + 0.25y = 11<BR>\n" );
document.write( "0.15x + 0.05y = 12 <BR>\n" );
document.write( "Ans: x=70 ; y = 30<BR>\n" );
document.write( "==========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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