Is it possible for a person to be buddhist and also another religion like lets say christian/muslim/jew/ etc.?

islamically it is unallowable for a person 2 practice different religions,

you will run into some problems, yet there are a pair issues you are able to observe of. there are various categories of buddhism, a lot of which mimic christianity almost to the letter and others that look almost pagan. In history, buddhism constantly welcomed innovations from different cultures and ideologies. answer: sure, you are able to be a buddhist and persist with yet another direction to boot. the massive majority of buddhism is correct to the theory and reverence, not approximately worship, and is an extremely volatile perception gadget. those are 2 countless issues.

it's possible to be a buddhist and still honor the gods of other religions, but that means you're not really taking those other gods very seriously. buddhism doesn't rely on gods as the center of its practice, but most other religions have a highly defined theology that would be compromised by syncretizing it with buddhism.

you could incorporate many buddhist ideas into these religions, but i'd say if you called yourself a buddhist christian/muslim/jew, you would be missing the point of all four religions.

One cannot be a Christian and another faith. Only Jesus paid the price for sin, so it would be hypocritical to think another religion or entity could save you.

Most religions have jealous gods who wont be happy.

It means that you don't know Islam at all.