document.write( "Question 464626: Solve the following systems of equations:\r
\n" ); document.write( "\n" ); document.write( "7x-6y= -11\r
\n" ); document.write( "\n" ); document.write( "9x-2y= 3\r
\n" ); document.write( "\n" ); document.write( "Also, can you please explain how to do a problem like this? That'd be great if you did! Thanks, in advance. \n" ); document.write( "
Algebra.Com's Answer #318302 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
starting with:
\n" ); document.write( "7x-6y= -11
\n" ); document.write( "9x-2y= 3
\n" ); document.write( ".
\n" ); document.write( "we can apply the \"addition method\" by multiplying the second equation by -3:
\n" ); document.write( "7x-6y= -11
\n" ); document.write( "-27x+6y= -9
\n" ); document.write( ".
\n" ); document.write( "Now, we add the two equations together:
\n" ); document.write( " 7x-6y= -11
\n" ); document.write( "-27x+6y= -9
\n" ); document.write( "-------------
\n" ); document.write( "-20x = -20
\n" ); document.write( "x = 1
\n" ); document.write( ".
\n" ); document.write( "substitute the above into either of the two equations to find y:
\n" ); document.write( "9x-2y= 3
\n" ); document.write( "9(1)-2y= 3
\n" ); document.write( "9-2y= 3
\n" ); document.write( "-2y= -6
\n" ); document.write( "y = 3
\n" ); document.write( ".
\n" ); document.write( "Solution: (x,y) = (1,3)\r
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