The equation 4 + 9 = 4 + 9 is an example of which property of equality? *

Transitive
Symmetric
Substitution
Reflexive

Reflexive

Step-by-step explanation:

The reflexive property of equality says that a given real number is always equal to itself.

For example :

are all examples of reflexive properties of equality.

can be simplified to

Which is explains why it is the reflexive property.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x