Answer:
Explanation:
The property of equality that was used in this problem is the addition property of equality.
The addition property of equality states that if we add the same value to both sides of an equation, the equality still holds. In the second equation, we can see that we added -3 to both sides of the equation 5m + 19 = 43 to obtain the equivalent equation 5m + 43 = 19. This is an application of the addition property of equality.
By adding the same value (-3) to both sides of the equation, we preserved the equality between the left-hand side and the right-hand side of the equation. This allowed us to simplify the equation and solve for m.