Reason for operator precedence

Hi all.

Hope this isn't a silly question.

I was wondering what the reason is for having multiple levels of operator
precedence?

Phrased another way, why is it that we don't just evaluate everything from
left to right?

Having multiple levels of precedence obviously adds complexity, so I assume
there must be some payback. However, I don't see what it is.

Any help with my question would be appreciated.

Thanks.

Tony
Melbourne, Australia


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