How many operating systems can a MacBook support?

I wanted to know if a MacBook can support more than 2 operating systems as I wished to have a Windows OS for some applications in addition to OSX and Linux in which I have to primarily work.

Welcome to the Apple Support Communities
You can install as many operating systems as you want, but if you install Windows, you can't install another operating system because Boot Camp needs two volumes on the hard drive.
I recommend you to install Linux in a virtual machine instead of on a partition if you want to use Windows

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