Answer:
13(3 - z) = 13(3 - z)
13(3 - z) = 39 - 13z
Explanation:
To make the equation have infinitely many solutions, when you simplify, the equation will become z = z
To make this happen, the equation has to be the same on either side of the equal sign. Here are the two options :
13(3 - z) = 13(3 - z)
13(3 - z) = 39 - 13z