allyssiacronin1 allyssiacronin1 06-06-2019 Mathematics contestada Solve: -x+3y+2=1 2x+5y=3 3x+y-2xz=-2 1. (21, -3, 39) 2. ((7/3, -1/3, 13/3) 3. (1, 2, -4) 4. (22, -1, 26)