The answer would be x = 4 miles.
A) 4(25-3y)+5y=9
100-7y=9
91=7y
y=13
(-14,13)
b) 14-x=x-10
2x=24
x=12
(12,14)
c) 4x=12
(3,7)
d) 18.5x+10.4y=200
x+y=130
Sorry, wt does it mean by angle A has sin 54
X = A/y
You divide the y from both sides
The y on the right cancels
On the left you have A/y = x
