+129840 2|z+1| - 3 = z - 2 add 3 to both sides
2 lz + 1 l = z + 1 divide both sides by 2
l z + 1 l = [ z + 1 ] / 2 we have two equations
z + 1 = [z + 1] / 2 there is no solution to this
or
-[z + 1] = [z + 1] / 2 simplify
-z - 1 = [z + 1 ] /2 multiply both sides by 2
-2z - 2 = z + 1 add 2z to both sides, subtract 1 from both sides
-3 = 3z divide both sides by 3
-1 = z
