Answer:
i am here to waste your time
Answer:
7 hours and 20 minutes.
Step-by-step explanation:
Answer:
x = 37
Step-by-step explanation:
The sum of the left side of these two equations is equal to the same of the right side is these two equations
4x+8y + (-4x+2y) = 20 + 30
10y =50 ( x is eliminated)
y=5
Take this into the second equation
-4x +2y = 30
-4x + 2*5 = 30
x=-5
So x=-5
y=5