リュボーフィ・イリュシェチキナのインスタグラム(lubov_ilyushechkina) - 9月23日 08時01分

My brother @lutiy_lutik and I are fans of tricky math tasks. He sent me this one. I'm soooo proud of myself, my knowledge of equations is still with me) so I solved it😁 anyone wants to try? 😉 #math #school #equation #solution

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する

• リュボーフィ・イリュシェチキナ