Yes you can prove PEMDAS. Oh, here is what my teacher does when she meets someone she knows while my class goes on a field trip.Teacher: OK, now we're going to... (door opens)Teacher: HIIIIIIIIIIII!!!!!!!!!!!!!!!!!!!!!
Yes we can prove it.if x = 5Take 2+2x-3now write it like this2+2*5-3you can see what we meant in the first example with x, but without rules, the second equation can result in different answers.
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