SOLUTION: Find X, Y, Z: 2X-3Y+ Z=5 X+3Y+8Z=22 3X- Y+2Z=12

Algebra ->  Matrices-and-determiminant -> SOLUTION: Find X, Y, Z: 2X-3Y+ Z=5 X+3Y+8Z=22 3X- Y+2Z=12       Log On


   

Question 411588: Find X, Y, Z: 2X-3Y+ Z=5
X+3Y+8Z=22
3X- Y+2Z=12

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi



D = matrix+%283%2C3%2C+2%2C+-3%2C+1%2C+1%2C+3%2C+8%2C+3%2C+-1%2C+2%29 = -48



D[x]=matrix+%283%2C3%2C+5%2C+-3%2C+1%2C+22%2C+3%2C+8%2C+12%2C+-1%2C+2%29 = -144



D[y]= matrix+%283%2C3%2C+2%2C+5%2C+1%2C+1%2C+22%2C+8%2C+3%2C+12%2C+2%29 = -48



D[z] =matrix+%283%2C3%2C+2%2C+-3%2C+5%2C+1%2C+3%2C+22%2C+3%2C+-1%2C+12%29=-96

 

  x = 3 and y = 1 and z = 2