Setting up and solving equations involving percentages

okay i have another word problem that i just dont understand how to set up... or where to begin

a man invested a total of $22,000 in two investments. he made a profit of 7% on the first and 2% on the second investment. If his profit was $920, what was the amount of each investment?

what is 7% of the first investment in terms of x?

what is 2% of the second investment in terms of x?

write an equation that says the sum of your last two answers in equal to $920

solve this equation.

what was the amount of each investment?