I think the walls colours of my classroom are too ugly. So I bought 2 orange paint pots and 1 green paint pots for a global price of £91.

A friend did the same but he bought 3 orange paint pots and 4 green paint pots for a global price of £204.

We lost the bill and we want to know orange and green paint pots prices.

The orange paint pot price is noted x.

The green paint pot price is noted y.

S {2x + 1y = 91

{3x + 4y = 204

Now my classroom is the most beautiful of the worl