document.write( "Question 895040: Write an equation in three variables. Solve the equation for each variable. Show all your steps. \n" ); document.write( "

Algebra.Com's Answer #542618 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
1. $\"x%2By%2Bz=2\"$
\n" ); document.write( "2. $\"x%2By-z=0\"$
\n" ); document.write( "3. $\"x-y-z=6\"$
\n" ); document.write( "Add eq. 1 and eq. 2,
\n" ); document.write( " $\"x%2By%2Bz%2Bz%2By-z=2%2B0\"$
\n" ); document.write( " $\"2x%2B2y=2\"$
\n" ); document.write( "4. $\"x%2By=1\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "Add eq. 1 and eq. 3,
\n" ); document.write( " $\"x%2By%2Bz%2Bx-y-z=2%2B6\"$
\n" ); document.write( " $\"2x=8\"$
\n" ); document.write( " $\"x=4\"$
\n" ); document.write( "Then from above,
\n" ); document.write( " $\"x%2By=1\"$
\n" ); document.write( " $\"4%2By=1\"$
\n" ); document.write( " $\"y=-3\"$
\n" ); document.write( "and finally,
\n" ); document.write( " $\"x%2By%2Bz=2\"$
\n" ); document.write( " $\"4-3%2Bz=2\"$
\n" ); document.write( " $\"z=1\"$
\n" ); document.write( " \n" ); document.write( "

\n" );