Answer :

4p+7=3+4+4p
4p+7=7+4p
-7 -7
4p=4p
p=p
so the answer I think it's c.
Exvited
4p + 7 = 3 + 4 + 4p
7 = 3 + 4
7 = 7

The answer is: infinite solutions.

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