### Rhind Papyrus - 25

This is an old problem, which could be use to explain some maths' history, fractions and equations. The point is just think and write the equation. Solving is easy.

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**15 solved this**

### mosquito & bee

Here is another maths puzzle with animals. This time can you solve mosquito & bee puzzle? Share this puzzle if you got the correct answer, thanks. 2x + y = 11 3x - y = 9

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**16 solved this**