document.write( "Question 515032: I'm not sure what the answer to this is;\r
\n" ); document.write( "\n" ); document.write( "Solve the system by substitution\r
\n" ); document.write( "\n" ); document.write( "x+2y=3
\n" ); document.write( "4x-y=-6 \n" ); document.write( "
Algebra.Com's Answer #343684 by Maths68(1474)\"\" \"About 
You can put this solution on YOUR website!
By subtitutio Method
\n" ); document.write( "====================
\n" ); document.write( "x+2y=3.........(1)
\n" ); document.write( "4x-y=-6.........(2)\r
\n" ); document.write( "\n" ); document.write( "Take (1)
\n" ); document.write( "x+2y=3
\n" ); document.write( "x=3-2y
\n" ); document.write( "Put the above value of x in (2)
\n" ); document.write( "4x-y=-6
\n" ); document.write( "4(3-2y)-y=-6
\n" ); document.write( "12-8y-y=-6
\n" ); document.write( "-9y=-6-12
\n" ); document.write( "-9y=-18
\n" ); document.write( "-9y/-9=-18/-9
\n" ); document.write( "y=2
\n" ); document.write( "Put the value of y (2)
\n" ); document.write( "4x-y=-6
\n" ); document.write( "4x-2=-6
\n" ); document.write( "4x=-6+2
\n" ); document.write( "4x=-4
\n" ); document.write( "4x/4=-4/4
\n" ); document.write( "x=-1\r
\n" ); document.write( "\n" ); document.write( "x,y = -1, 2\r
\n" ); document.write( "\n" ); document.write( "Check put the valud of x and y in (1)
\n" ); document.write( "x+2y=3.........(1)
\n" ); document.write( "(-1)+2(2)=3
\n" ); document.write( "-1+4=3
\n" ); document.write( "3=3
\n" ); document.write( " \n" ); document.write( "
\n" );