document.write( "Question 107573: 2x-y=4
\n" ); document.write( "6x+3y=-18
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Algebra.Com's Answer #78342 by mathnoob(8) $\"\"$ $\"About$

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Lets name the equation
\n" ); document.write( "2x-y=4 ----------- 1
\n" ); document.write( "6x+3y=-18 ----------- 2
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\n" ); document.write( "From equation 1
\n" ); document.write( "y=2x-4 ----------- 3
\n" ); document.write( "---------------------------
\n" ); document.write( "Subsititue equation 3 into equation 2
\n" ); document.write( "6x+3(2x-4)=-18
\n" ); document.write( "6x+6x-12=-18
\n" ); document.write( "12x=-6
\n" ); document.write( " x= $\"-1%2F2\"$
\n" ); document.write( "---------------------------
\n" ); document.write( "Subsititue x into equation 3
\n" ); document.write( "y= $\"2%28-1%2F2%29-4\"$
\n" ); document.write( " =-1-4
\n" ); document.write( " =-5
\n" ); document.write( "-----------------------------
\n" ); document.write( "Good Luck, By: Mathnoob
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