document.write( "Question 1128185: 3x-4y=27
\n" ); document.write( "2x+6y=-34
\n" ); document.write( "Solve by elimination method
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Algebra.Com's Answer #744672 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\"3x-4y=27\"......eq.1
\n" ); document.write( "\"2x%2B6y=-34\".....eq.2
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\n" ); document.write( "Solve by elimination method\r
\n" ); document.write( "\n" ); document.write( "\"3x-4y=27\"......eq.1...both sides multiply by \"2\"
\n" ); document.write( "\"2x%2B6y=-34\".....eq.2...both sides multiply by \"3\"
\n" ); document.write( "----------------------------------\r
\n" ); document.write( "\n" ); document.write( "\"6x-8y=54\"......eq.1
\n" ); document.write( "\"6x%2B18y=-102\".....eq.2
\n" ); document.write( "----------------------------------substitute eq.2 from eq.1\r
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\n" ); document.write( "\n" ); document.write( "\"6x-8y-%286x%2B18y%29=54-%28-102%29\"\r
\n" ); document.write( "\n" ); document.write( "\"cross%286x%29-8y-cross%286x%29-18y=54%2B102\"\r
\n" ); document.write( "\n" ); document.write( "\"-8y-18y=156\"\r
\n" ); document.write( "\n" ); document.write( "\"-26y=156\"\r
\n" ); document.write( "\n" ); document.write( "\"y=156%2F-26\"\r
\n" ); document.write( "\n" ); document.write( "\"y=-6\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( "\"3x-4y=27\"......eq.1, substitute \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"3x-4%28-6%29=27\"\r
\n" ); document.write( "\n" ); document.write( "\"3x%2B24=27\"\r
\n" ); document.write( "\n" ); document.write( "\"3x=27-24\"\r
\n" ); document.write( "\n" ); document.write( "\"3x=3\"\r
\n" ); document.write( "\n" ); document.write( "\"x=1\"\r
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