document.write( "Question 119112: 3x-3y+3z=-27
\n" ); document.write( "2x+2y+3z=-3
\n" ); document.write( "-3x+2y+2z=-3 \n" ); document.write( "
Algebra.Com's Answer #87234 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
You didn't specify a solution method.
\n" ); document.write( "Hopefully a matrix solution is OK.
\n" ); document.write( "[A][x]=[b]
\n" ); document.write( "where
\n" ); document.write( "[A]=\"%28matrix%283%2C3%2C%0D%0A3%2C-3%2C+3%2C+%0D%0A2%2C2%2C3%2C%0D%0A-3%2C2%2C2%29%29%0D%0A\"
\n" ); document.write( "[x]=\"%28matrix%283%2C1%2C%0D%0Ax%2Cy%2Cz%29%29%0D%0A\"
\n" ); document.write( "[b]=\"%28matrix%283%2C1%2C%0D%0A-27%2C-3%2C-3%29%29%0D%0A\"
\n" ); document.write( "We then need to find the inverse of [A]([Ainv]) and matrix multiply by [b] to get [x].
\n" ); document.write( "[A][x]=[b]
\n" ); document.write( "[x]=[Ainv][b]
\n" ); document.write( "[Ainv]=(1/63)*
\n" ); document.write( "[Ainv][b]=(1/63)*
\n" ); document.write( "[x]=\"%28matrix%283%2C1%2C%0D%0A1%2C5%2C-5%29%29%0D%0A\"
\n" ); document.write( "x=1
\n" ); document.write( "y=5
\n" ); document.write( "z=-5
\n" ); document.write( " \n" ); document.write( "
\n" );