document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=470832>Question 470832</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system by the method of substitution.\r<BR>\n" );
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document.write( "{x^2+y^2=25<BR>\n" );
document.write( "{3x-4y=0\r<BR>\n" );
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document.write( "a. no real solution<BR>\n" );
document.write( "b.(3,4),(3,-4)<BR>\n" );
document.write( "c.(4,3),(-4,-3)<BR>\n" );
document.write( "d.(4,3)<BR>\n" );
document.write( "e.(4,3)(-4,3),(-4,-3),(4,-3) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322942 by </B><A HREF=/tutors/aboutme.mpl?userid=hinaahsan><B>hinaahsan(5)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=hinaahsan><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=322942\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2 + y^2 =25 --> (1)<BR>\n" );
document.write( "whereas,  3x-4y=0 -->(2)<BR>\n" );
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document.write( "using equation 2<BR>\n" );
document.write( "3x=4y<BR>\n" );
document.write( "x=4y/3 -->(3)<BR>\n" );
document.write( " using value of x from equation (3) and subsituting in equation (1)\r<BR>\n" );
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document.write( "(4y/3)^2 + y^2 =25<BR>\n" );
document.write( "16y^2/9 +y^2 =25\r<BR>\n" );
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document.write( "(16y^2/9 +9y^2/9) = 25\r<BR>\n" );
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document.write( "25y^2/9 =25<BR>\n" );
document.write( "y^2/9 =25/25\r<BR>\n" );
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document.write( "y^2/9 =1\r<BR>\n" );
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document.write( "y^2 = 9\r<BR>\n" );
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document.write( "(y)^2 = (3)^2\r<BR>\n" );
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document.write( "y = 3 -->(4)\r<BR>\n" );
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document.write( "using the value of y from equation (4) in equation (3) to get the value of x\r<BR>\n" );
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document.write( "x= 4y/3<BR>\n" );
document.write( "x= 4(3)/3<BR>\n" );
document.write( "x=4\r<BR>\n" );
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document.write( "Ans: (x,y)=(4,3) </SPAN>\n" );
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