document.write( "Question 928190: \n" ); document.write( "
Algebra.Com's Answer #563522 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
x + 2y + z = -1
\n" ); document.write( "x - y + z = 3
\n" ); document.write( "x + y = 4
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
\n" ); document.write( "---
\n" ); document.write( "x + 2y + z = -1
\n" ); document.write( "x - y + z = 3
\n" ); document.write( "x + y = 4
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
\n" ); document.write( "---
\n" ); document.write( "solution:
\n" ); document.write( "x = 5.3333333
\n" ); document.write( "y = -1.3333333
\n" ); document.write( "z = -3.6666667
\n" ); document.write( "---
\n" ); document.write( "system matrix
\n" ); document.write( "1 2 1
\n" ); document.write( "1 -1 1
\n" ); document.write( "1 1 0
\n" ); document.write( "---
\n" ); document.write( "inverse of system matrix
\n" ); document.write( "-0.33333333 0.33333333 1
\n" ); document.write( "0.33333333 -0.33333333 0
\n" ); document.write( "0.66666667 0.33333333 -1
\n" ); document.write( "---
\n" ); document.write( "determinant of system matrix = 3
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "
\n" );