SOLUTION: Name the property of equality that justifies the following statement. Please explain so I can understand. If m angle 1 + m angle 2 = m angle 3 + m angle 4 and m angle 2 = m angl

Algebra ->  Geometry-proofs -> SOLUTION: Name the property of equality that justifies the following statement. Please explain so I can understand. If m angle 1 + m angle 2 = m angle 3 + m angle 4 and m angle 2 = m angl      Log On


   

Question 1155481: Name the property of equality that justifies the following statement. Please explain so I can understand.
If m angle 1 + m angle 2 = m angle 3 + m angle 4 and m angle 2 = m angle 4, then m angle 1 + m angle 4 = m angle 3 + m angle 4.
1. subtraction
2. transitive
3. symmetric
4. Substitution
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
A 1+A2= A3+A4
But A2=A4
so substitute on the left side of the above A4 in place of A2
then it is A1 +A4=A3+A4