Answer:
The total liters of oil in the first container originally was 32 liters
total liters of oil in the second container originally was 64 liters
Explanation:
Let
x----> total liters of oil in the first container originally
y----> total liters of oil in the second container originally
we know that
y=2x ----> equation A
(y-7)=3(x-13) ----> equation B
substitute equation A in equation B
(2x-7)=3(x-13)
2x-7=3x-39
3x-2x=39-7
x=32 liters
Find the value of y
y=2(32)=64 liters