Zach tried to solve an equation step by step. 4
3


4
3

+
2
1


4
5




=z−
2
1


=z−
2
1

+
2
1


=z


Step 1
Step 2


Find Zach's mistake.

For what type of equity loan are you lent a lump sum, which is to be paid within a certain period of time? a. a line of credit b. equity c. a second mortgage d. an amortization