# SOLUTION: I have been working on this for days. If anyone can help, I would appreciate it. I have to show all of my work. Solve using addition, Cramers Rule or matrix. 2x + y - 3z + 4s

Algebra ->  Algebra  -> Matrices-and-determiminant -> SOLUTION: I have been working on this for days. If anyone can help, I would appreciate it. I have to show all of my work. Solve using addition, Cramers Rule or matrix. 2x + y - 3z + 4s      Log On

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 Algebra: Matrices, determinant, Cramer rule Solvers Lessons Answers archive Quiz In Depth

 Question 83333: I have been working on this for days. If anyone can help, I would appreciate it. I have to show all of my work. Solve using addition, Cramers Rule or matrix. 2x + y - 3z + 4s + t = -2 3x + 2 y - 2z - s + 2t = 7 x - y + z - 2s - 2t = 0 -x - 2y - z + 2s + t = 5 2x + 2y - 2z +s + 2t = 3 Found 2 solutions by jim_thompson5910, stanbon:Answer by jim_thompson5910(28595)   (Show Source): You can put this solution on YOUR website!Here is a solution generated by the "Step-by-Step Linear Equations, Matrices and Determinants" solver which can be found here. Let , , , , Answer by stanbon(57361)   (Show Source): You can put this solution on YOUR website!Solve using addition, Cramers Rule or matrix. 2x + y - 3z + 4s + t = -2 3x + 2 y - 2z - s + 2t = 7 x - y + z - 2s - 2t = 0 -x - 2y - z + 2s + t = 5 2x + 2y - 2z +s + 2t = 3 --------------------------- Matrixis the easiest way to go: Form a 5x5 coefficient matrix = A Form a 5x1 constant matrix = B ----------------- EQUATION: Form A^-1B = C C has the solutions for x,y,z,s,t x=2 y=-3 z=1 s=-1 t=4 ========================= Cheers, Stan H.