Question

find solution (x,y,z)
3x+5-3z=27
-3x-y+2z=-3
-2x+2y+6z=14

Answer 1

@satellite73

Answer 2

@wio

Answer 3

@dan815

Answer 4

did you mean ?
3x+5y-3z=27
-3x-y+2z=-3
-2x+2y+6z=14

Answer 5

find x from the 1st equation and out into 2nd and 3rd
then find y from one of them and put into other to find z
now solve for z
then go backward to find y
then for x

Answer 6

is this a simultaneous equation

Answer 7

Gauss-Jordan Matrix Elimination.

Answer 8

-2x+2y+6z=14
/2
-x+y+3z=7
y+3z-7=x
now put x=y+3z-7
in the 1st and 2nd equation
simplify
solve for y,z
you will find
z=0 , x=-1 ,y=6