I need help solving these problems.
1.What does x equal in the solution of the system of equations below?
x+2y+z=4 [1]
4y-3z=1 [2]
2y+10z=12 [3]
Use [2] and [3] to solve for y and z. Elimination method: multiply [3] by 2, and subtract [3] from [2] to eliminate y, and solve for z. Plug the value for z you obtain into [2] or [3] to solve for y.
Plug the values for y and z you obtain into [1] to solve for x.
2. What does y equal in the solution of the system of equations below?
2y-x+1=0 [1]
2z+3=5 [2]
2y-z=1 [3]
[2] gives you z. Plug this value for z into [3] to solve for y.
