Answer:
46
Step-by-step explanation:
14-60 equals 46 and just go to your answer and put that in and there u go buddy
Can you take another pic of it because it is blurry
Use elimination method - I am eliminaing the y-variable.
1(5x + 8y = 16) → 5x + 8y = 16
4(6x - 2y = 54) → 24x - 8y = 216
Add equations: 29x = 232
Divide by 29: x = 8
Answer: x = 8
D must be perpendicular to a because d is parallel to c. c is perpendicular to b. b is parallel to a.