Name the property of equality or congruence that justifies going from the first statement to the second statement 3x + 5x (3 + 5) * x

The property of equality or congruence that justifies going from the first statement to the second statement is the distributive property.

The property of equality or congruence that justifies going from the first statement 3x + 5x to the second statement (3 + 5) * x is the distributive property.