Question 910865

x − 2y + z = −3
<u>-(x + y + 3z = 34)</u>
-3y - 2z = -37
<u>y + 2z = 19</u>  |multiplying thru by 3 to  eliminate the y variable by adding the Eqs
4z= 20
z = 5
y = 9 {{{-3y -10 = -37}}}, y = -27/-3
Will Let You finish it Up determining x = 10

ordered triple (10, 9, 5)