Answer:
X = 12
Y = 4
Step-by-step explanation:
X + Y = 16
X = 3Y
3Y + Y = 16
4Y = 16
X + 4 = 16
..................✨✨✨✨✨✨✨✨✨✨✨✨✨✨
5x^2+x-6
(5x-1)(x+1)-5x+x-5+x
(5x^2+5x-x-1)-5x+x-5+x
A=L×B
259=18.5×B
295=18.5B
295/18.5=18.5B/18.5
8.595=B
