Respuesta :
Answer:13.44
Step-by-step explanation:
From eqn 1, y= -5-4x
-3x + 4(-5-4x)=18
-3x-20-16x=18
-18x= 38
x= -2.11
then y= -5-4(2.11)
= -13.44 sorry if im wrong
Try this suggested option, the answer is underlined with colour (x=0, y=1; x=y=1/2).