Your answer would turn out to be Shelby goes out her front door turns West and walks past the other three houses.
The answer is
x=10+2y
Steps:
2(x-2y)=20
x-2y=20/2 (in fraction form 20/2)
x-2y=10
X=10+2y
Your answer is 3/8 , that’s your answer
40x+30x=315
70x=315
315/70=
4.5 hours
12:00 noon + 4.5 hours = 4:30 pm