Answer
{4/3,-3/2}
Work Step by Step
You will need to create two seperate equations.
5z-1=7-z
5z+z-1=7-z+z
6z-1=7
6z-1+1=7+1
6z=8
6z/6=8/6
z=4/3
and
5z-1=-7+z
5z-z-1=-7+z-z
4z-1=-7
4z-1+1=-7+1
4z=-6
4z/4=-6/4
z=-3/2
The solution set is {4/3, -3/2}.
