Question

2x + y + z = –7
x – 3y + 4z = –14
x – 2y – 3z = –11

Answer 1

what is the question?

Answer 2

Are you attemtping to solve for values of x y and z?

Answer 3

@sammyrayepatton

Answer 4

to explain which method I would use and how to solve it

Answer 5

elimination method..

Answer 6

yes, I just dont know how to do it, and it would be amazing if someone could help me!:/

Answer 7

In the bottom two equations you have 1x in one equation and 1x in the other equation as well

Answer 8

solve 2 eqns to remove a variable ,solve the new eqn with the 3rd eqn

Answer 9

could you guys please show me how to do that?:/

Answer 10

x-3y+4z=-14
- x-2y-3z= -11

Answer 11

Use that so you can eliminate x from those two equations and proceed to solve the equation from there

Answer 12

wait so what do I do with it, I'm trying to pass a class, and my grade is totally dependening on it, and I'm going to lose my mind I cant get this part of the lesson down..

Answer 13

Alright, so when you subtract the bottom equation from the middle equation what do you get? ( The equation I just posted)

Answer 14

x-5y+z=-25?

Answer 15

Close, since you are subtracting Positive x from positive x, the x's would cancel out. Understand?

Answer 16

5y+z=-25?