document.write( "Question 19320: 2x-3y+5z=-5, 2y-3z=4, and 4z=-8 \n" ); document.write( "
Algebra.Com's Answer #9355 by akmb1215(68)![]() ![]() ![]() You can put this solution on YOUR website! To start this problem, solve the third equation for z:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now, plug -2 in for z in the second equation to get:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Finally, plug -2 in for z AND -1 in for y in the first equation and solve for x:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Your final answers would be x=1; y=-1; x=-2. \n" ); document.write( " |