document.write( "Question 107419: How do I solve by elimination: X-4Y=-23
\n" ); document.write( " 2X+3Y=9 \n" ); document.write( "

Algebra.Com's Answer #78211 by mathnoob(8) $\"\"$ $\"About$

You can put this solution on YOUR website!
multiply first equation by 2
\n" ); document.write( " 2x-8y=-46
\n" ); document.write( " (2x+3y)-(2x-8y)=9-(-46)
\n" ); document.write( " 2x+3y-2x+8y=55
\n" ); document.write( " 11y=55
\n" ); document.write( " y=5
\n" ); document.write( " sub y into the first equation in your question we get
\n" ); document.write( " x-4(5)=-23
\n" ); document.write( " x-20=-23
\n" ); document.write( " x=-3
\n" ); document.write( "
\n" ); document.write( " \n" ); document.write( "

\n" );