Answer :

Given the following mathematical expressions:

7. (8x – 3) + 12 = (8x – 3) + 12

8. If a = -3 and —3 = d, then a = d.

Then

7. These are simply equal. The left hand side and the right hand side are the same.

8. This represents transitivity. This is the property that when

if a = b, and b = c, thn a = c

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