SOLUTION: I really didn't know where to submit this question but I have been working on it for sometime and I'm not even sure how to get 2 equations by eliminating a variable. Should you in

Algebra ->  Matrices-and-determiminant -> SOLUTION: I really didn't know where to submit this question but I have been working on it for sometime and I'm not even sure how to get 2 equations by eliminating a variable. Should you in       Log On


   



Question 116994: I really didn't know where to submit this question but I have been working on it for sometime and I'm not even sure how to get 2 equations by eliminating a variable. Should you in every circumsatnce of solving linear systems, attempt to first eliminate the x variable? Please help!
solve the linear system without using matrices or determinants
2x-2y+z=-7
3x+y+2z=-2
5x+3y-3z=-7

Answer by jim_thompson5910(35256) About Me  (Show Source):