Use the substitution method to solve the following system of equations.

3x + y – z = 2
2x + y + 2z = 8
2x – 3y + z = 21

Question

Use the substitution method to solve the following system of equations.

3x + y – z = 2
2x + y + 2z = 8
2x – 3y + z = 21

anonymous · Answer

(3, –4, 3) //
   (–3, 4, 3) //
   (3, 4, 3) //
   (3, 4, –3)

anonymous · Answer

This is the same problem you posted earlier

anonymous · Answer

is it????

anonymous · Answer

Oh, I guess the numbers are different.  Well, you solve it using the same method.  Did you understand the method from the previous question?

anonymous · Answer

i'm just taking notes for my sister to be completly honest.

anonymous · Answer

OK, I teach, but I don't give out answers.  If you want to learn I can work with you but I'm not just going to solve these for you.

anonymous · Answer

You can just type the equations into wolfram alpha if you really just want them solved

anonymous · Answer

i just dont want to learn all this because i get to enjoy this next year. haha. sorry to bug you

anonymous · Answer

ok, no problem.  see ya! :-)