I really need help on this algebra 1 problem!

Question

One canned juice drink is 20​% orange​ juice; another is 10​% orange juice. How many liters of each should be mixed together in order to get 10L that is 14​% orange​ juice?

Answer 1

X+Y = 10 <--- there are 10 liters of juice altogether

0.2x + 0.1y = 10*.14 <--- the OJ concentration euqation

2x + y = 14 <--- multiplies both sides by 10

subtracts the bolded equations: x = 4 ---> y = 6