Mike Ackerman decided to open Mike’s Nail Spa. Mike completed the following transactions:

a. Invested $24,000 cash from his personal bank account into the business.

b. Bought store equipment for cash, $3,700.

c. Bought additional store equipment on account, $6,100.

d. Paid $900 cash to partially reduce what was owed from transaction C.

Record these transactions into the basic accounting equation.