On April 15, 2026, the following transactions occurred:

1. Alpha Solutions purchased $400,000 of inventory on credit from Beta Suppliers.
2. Beta Suppliers granted a $40,000 discount to Alpha Solutions for early payment of the invoice from Transaction 1.
3. Gamma Enterprises paid $200,000 in cash for marketing services provided by Delta Marketing.
4. Delta Marketing provided $80,000 worth of advertising services to Epsilon Services on credit.
5. Epsilon Services returned $40,000 worth of unused marketing materials to Delta Marketing.
6. Zeta Industries sold equipment for $450,000 cash to Theta Corporation.
7. Theta Corporation paid $70,000 for consulting services provided by Iota Consulting.
8. Iota Consulting granted a $12,000 discount to Theta Corporation for prompt payment of the consulting invoice.
9. Kappa Ventures received a $180,000 loan from Lambda Bank.
10. Lambda Bank charged $18,000 as interest on the loan provided to Kappa Ventures.
11. Mu Corporation sold $400,000 worth of products to Nu Inc. on credit.
12. Nu Inc. paid $320,000 in cash to Mu Corporation for products delivered.

Please journalize these transactions for the respective companies involved.