Muti wan load balancing by gateway ip

Hi all. I have 2 DSL connections on a wireless network. One DSL modem in one building and another in a separate building. Everything is connected to the same network subnet. Both modems have static ip addresses and have dhcp disabled. Clients pcs are setup using using static ip addresses. What I would like to know is whether it is possible to use an RB750 to load balance these two DSL connections without having a network cable directly attached to the modem. Can you just specify Ip addresses of each DSL modem as a gateway and combine and then point each pc to the mikrotik static ip. We don’t use DHCP at all.

Thanks for taking the time to read my question.

The MT must have a connection in some form (ethernet, fiber, or wireless) to both DSL endpoints in order to connect to them.

you can try something like single interface routing
but your clients have to be on different subnet than the dsl modems are.