document.write( "Question 89529: solve the system by addition
\n" ); document.write( "2x - 9y = -4
\n" ); document.write( "x - 4y = -1
\n" ); document.write( "

Algebra.Com's Answer #65077 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
multiply the second equation by -2 to get -2x+8y=2 ... add this result to the first equation to get\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "(2x-9y)+(-2x+8y)=-4+2 ... -y=-2 ... y=2 ... x-4(2)=-1 ... x=7
\n" ); document.write( "
\n" );