document.write( "Question 522860: 6x-5y=-67
\n" );
document.write( "7x+83=y\r
\n" );
document.write( "\n" );
document.write( "7m+n=13
\n" );
document.write( "m-9n=11\r
\n" );
document.write( "\n" );
document.write( "4x+5y=15
\n" );
document.write( "-6x+y=37\r
\n" );
document.write( "\n" );
document.write( "6x+9y=-33
\n" );
document.write( "-3x+y=22\r
\n" );
document.write( "\n" );
document.write( "Im suppose to solve using the substition method, I am confused! \n" );
document.write( "
Algebra.Com's Answer #347044 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 6x-5y=-67 \n" ); document.write( "7x+83=y \n" ); document.write( "--- \n" ); document.write( "Substitute for \"y\" and solve for \"x\": \n" ); document.write( "6x -5(7x+83) = -67 \n" ); document.write( "6x-35x-415 = -67 \n" ); document.write( "-29x = 348 \n" ); document.write( "x = -12 \n" ); document.write( "---- \n" ); document.write( "Solve for \"y: \n" ); document.write( "y = 7x+83 \n" ); document.write( "y = 7*-12 + 83 \n" ); document.write( "y = 0 \n" ); document.write( "=================================================== \n" ); document.write( " \n" ); document.write( "7m+n=13 \n" ); document.write( "m-9n=11 \n" ); document.write( "--- \n" ); document.write( "Solve the bottom equation for \"m\": \n" ); document.write( "m = 9n+11 \n" ); document.write( "--- \n" ); document.write( "Substitute into the 1st equation and solve for \"n\": \n" ); document.write( "7(9n+11) + n = 13 \n" ); document.write( "63n + 77 + n = 13 \n" ); document.write( "64n = - 64 \n" ); document.write( "n = -1 \n" ); document.write( "---- \n" ); document.write( "Substitute for \"n\" an solve for \"m\": \n" ); document.write( "m = 8n+11 \n" ); document.write( "m = 8*-1 + 11 \n" ); document.write( "m = 3 \n" ); document.write( "================== \n" ); document.write( "Work the others in a similar manner. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "4x+5y=15 \n" ); document.write( "-6x+y=37 \n" ); document.write( "6x+9y=-33 \n" ); document.write( "-3x+y=22 \n" ); document.write( "Im suppose to solve using the substition method \n" ); document.write( " |