document.write( "Question 1155472: 3x + 3 = 5y
\n" ); document.write( "4x + 2y = -4
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Algebra.Com's Answer #778059 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\"3x+%2B+3+=+5y\"......eq.1
\n" ); document.write( "\"4x+%2B+2y+=+-4\" ......eq.2
\n" ); document.write( "-----------------------\r
\n" ); document.write( "\n" ); document.write( "start with\r
\n" ); document.write( "\n" ); document.write( "\"3x+%2B+3+=+5y\"......eq.1, solve for \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"3x%2F5+%2B+3%2F5+=+y\"......substitute in eq.2\r
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\n" ); document.write( "\n" ); document.write( "\"4x+%2B+2%283x%2F5+%2B+3%2F5%29=+-4\" ......eq.2,...solve for \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"4x+%2B+6x%2F5+%2B+6%2F5=+-4\"........both sides multiply by \"5\"\r
\n" ); document.write( "\n" ); document.write( "\"20x+%2B+6x+%2B+6=+-20\"\r
\n" ); document.write( "\n" ); document.write( "\"26x+=+-20-6\"\r
\n" ); document.write( "\n" ); document.write( "\"26x+=+-26\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+-1\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( "\"3x+%2B+3+=+5y\"......eq.1, substitute \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"3%28-1%29+%2B+3+=+5y\"\r
\n" ); document.write( "\n" ); document.write( "\"-3+%2B+3+=+5y\"\r
\n" ); document.write( "\n" ); document.write( "\"0+=+5y\"\r
\n" ); document.write( "\n" ); document.write( "\"y=0\"\r
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\n" ); document.write( "\n" ); document.write( "solution:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+-1\"\r
\n" ); document.write( "\n" ); document.write( "\"y=0\"\r
\n" ); document.write( "\n" ); document.write( "intersection point is at: (\"-1\",\"0\")\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+3x%2F5+%2B+3%2F5+%2C+-2x-2%29+\"\r
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