What ? Is this in spanish?
Diagonals of a rect. are equal...
diagonals bisect each each other...
from these two properties we get ,
4x-12 = 1/2 (7x-18)
2 (4x-12)=7x-18
8x-24=7x-18
x=6
HOPE IT HELPS YOU '_'
1/4 and you choose three different toppings for a sundae
The answer to the question is = 0, -5