4 knives and 5 forks cost £4.90 in total. 7 knives and 3 forks cost £5.70 in total. How much do they each cost?
Each knive costs £0.60 and each fork costs £0.5
Let's recall knives' price as
Then we get these 2 equations:
There are plenty of ways to solve this, choose which you like the most.
Finally we get: