Which of the following is an example of an open equation?

(1 point)

5x + 7 = 12
5 x + 7 = 12

12 + (–8) = 4
12 + (–8) = 4

25 = 5(5)
25 = 5(5)

8 + 0 = 8

1 answer

8 + 0 = 8

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