Solve. x+4=23
21
19
-19
27

x=19

Step-by-step explanation:

first you have to subtract both sides from 4 so you will get

x=23-4

after simplify 23-4 to 19

and that's how you get your answer

B x=19

Step-by-step explanation:

hope this helps you out

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1