Question

Solve the following system of equations using elimination:

5x+3y+z=25
3x-3y-z=7
4x+y+4z=14

Answer 1

Add the first two equations. That will eliminate both y and z

Answer 2

then from there what do i plug x back into?

Answer 3

Replace x in the third equation and one of the other equations and solve that new system for y and z. You MUST use the third equation.

Answer 4

when i plug x back into the third equation i end up with y+4z=-2

Answer 5

that changed into y=mx+b form isn't right because i need 3 whole answers.