How much does a fish cost in 2020? Details

Brain Hole 2020 How much does a fish cost? In this level, players need to figure out how much money the fish costs. The editor will give you a detailed introduction below. Interested players should take a look!

Brain hole 2020 How much does fish cost?

Question: A pound of hairy crabs and a fish cost a total of 56 yuan. If the crab is 44 yuan more expensive than the fish, how much does the fish cost?

Answer: 6.

Let the fish be X and the hairy crab be Y

Known conditions: X+Y =56;Y -X =44

So Y=44+X.

X+（44+X）=56

2X=12

X=6