Question

Solve the system of three linear equations

Answer 1

E1: x-4y+z=5
E2:4x+2y+z=2
E3:-4x+y-3z=-8

Answer 2

Any ideas on where to start?

Answer 3

first i did -1*E1+E2

Answer 4

to eliminate z from each equation

Answer 5

yup, what do you get from -E1 + E2?

Answer 6

wait im sorry i just figured out what i did wrong! i forgot to put a negative sign when i was plugging in all of my variables!

Answer 7

im sorry thank you so much, the answers are x=1/3 y=-2/3 and z=2

Answer 8

ok.