Question

Solve the following system of equations.
4x – 3y + z = –9
x + 2y + 2z = 5
x – 2y + 3z = –2

Answer 1

Solve the first equation for z, then substitute it into the other two equations

Answer 2

I get z = -9 - 4x + 3y

Answer 3

My options are (1, 1, –10)

(1, 2, –7)

(–1, 2, 1)

(–1, 1, 0)

Answer 4

(x,y,z) = (-1,2,1)

Answer 5

Using Cramer's rule

Answer 6

Yeah, marie, you should learn how to do these.