I am having trouble understanding how to calculate the correct answers or how to get the correct answers to this question:

On January 1, Lumia Company's liabilities are $62,000 and its equity is $42,000. On January 3 , Lumia purchases and installs solar panel assets costing $12,000. For the panels, Lumia pays $5,000 cash and promises to pay the remaining $7,000 in six months. What is the total of Lumia's assets after the solar panel purchase