Question

What is the missing reason in step 3? substitution property of equality angle addition postulate subtraction property of equality addition property of equality

Answer 1

multiplecation was missing

Answer 2

Multiplication was missing in the step 3.

It has substitution and taken by the property that has equality angle addition.

This postulate in bringing subtraction property and begin to consider by calculating the equality addition property of equality.

So, multiplication is missing in the step 3.

It have been discovered by bringing its property by evaluating it so far the details.