Respuesta :
Distribute the 4:
4z - 20 + 2 = 4z - 18
Subtract 4z
-20 + 2 = -18
-18 = -18
This is true so that means there are infinite number of solutions... z could be anything!
4z - 20 + 2 = 4z - 18
Subtract 4z
-20 + 2 = -18
-18 = -18
This is true so that means there are infinite number of solutions... z could be anything!
All real numbers is the solution of this equation
4z - 20 +2 = 4z - 18
4z - 18 = 4z - 18
+18 +18
4z = 4z
4z - 20 +2 = 4z - 18
4z - 18 = 4z - 18
+18 +18
4z = 4z