# SOLUTION: can someone PLEASE help me solve this system: { x+ y-4z=6 {2x-5y+3z=2 { x-6y+7z=-4 thank you so much!

Algebra ->  Algebra  -> Systems-of-equations -> SOLUTION: can someone PLEASE help me solve this system: { x+ y-4z=6 {2x-5y+3z=2 { x-6y+7z=-4 thank you so much!      Log On

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 Algebra: Systems of equations that are not linear Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Systems-of-equations Question 114169: can someone PLEASE help me solve this system: { x+ y-4z=6 {2x-5y+3z=2 { x-6y+7z=-4 thank you so much!Answer by stanbon(57361)   (Show Source): You can put this solution on YOUR website!x+ y -4z=6 2x-5y+3z=2 x-6y+7z=-4 --------------- Using the TI-83 Matrix function I find the determinant of the coefficient matrix is zero. So there is no solution for this system of equations. ------------------- You can see why this happens if you add equation #1 to equation #3. You get 2x-5y+3 = 2. Therefore the system of equation is dependent; the three planes are really just one plane. -------------------- Cheers, Stan H.