Complex sentence: While they could seek to borrow from a bank if the bank will accept the risk, they will commonly look to private equity investors to back their buyout in return for a proportion of the equity and sometimes also through a loan to the management.
Split into simpler sentences: While they could seek to borrow from a bank if the bank will accept the risk, they will commonly look to private equity investors to back their buyout. They will invest money in return for a proportion of the shares in the company, and sometimes also grant a loan to the management.