En una floreria se quieren acomodar 63 rosas en tres floreros , de modo que en el primer florero ponga el triple que en el segundo florero , y en el tercer florero 7 rosas menos que en el primer flore?

<img src="https://tex.z-dn.net/?f=Hola%20%20%5C%5C%20%20%5C%5C%20Sean~las~flores~%5Cbegin%7Bcases%7Dprimer~flor~----%5C%20%5Ctextgreater%20%5C%20x%20%5C%5C%20segundo~flor----%5C%20%5Ctextgreater%20%5C%20y%20%5C%5C%20tercer~flor-----%5C%20%5Ctextgreater%20%5C%20z%5Cend%7Bcases%7D%20%5C%5C%20%20%5C%5C%20En%20~total~hay~63~rosas%2C%20osea%3A%20%5C%5C%20%5Cboxed%7B%20x%2By%2Bz%3D63%20%7D~----%5C%20%5Ctextgreater%20%5C%20%28I%29%5C%5C%20%20%5C%5C%20Nos~dice~que%2Cde~modo~que~en~el~primer~florero~ponga~el~triple~que%20%5C%5C%20el~segundo~florero%2C%20osea%3A%20%5C%5C%20x%3D3y~~--%5C%20%5Ctextgreater%20%5C%20despejamos~%28y%29~tenemos%20%5C%5C%5Cboxed%7B%20y%3D%20%5Cfrac%7Bx%7D%7B3%7D%7D%20~-------%5C%20%5Ctextgreater%20%5C%20%28II%29%20%5C%5C%20%20%5C%5C%20Y%2C%20tambien~nos~dice~que%3A~En~el~tercer~florero~7~~rosas~menos~que~en~%20%5C%5C%20el~primer~florero%2C%20osea%3A%20%5C%5C%20%5Cboxed%7Bz%3Dx-7%7D~------%5C%20%5Ctextgreater%20%5C%20%28III%29%5C%5C%20%20%5C%5C%20%20%5C%5C%20" />

<img src="https://tex.z-dn.net/?f=%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%20%5C%5C%20Reemplzando~%28II%29~y~%28III%29~em~%28I%29~tenemos%3A%20%5C%5C%20x%2B%20%5Cfrac%7Bx%7D%7B3%7D%20%2Bx-7%3D63~~--%5C%20%5Ctextgreater%20%5C%20resolviendo%20%5C%5C%20%5C%5C%20%20%20%5Cfrac%7B7x%7D%7B3%7D%20%20%3D70%20%5C%5C%20%20%5C%5C%20%5Cboxed%7B%5Cboxed%7Bx%3D30%7D%7D~~---%5C%20%5Ctextgreater%20%5C%20el~primer~florero~30%20~rosas%20%5C%5C%20%20%5C%5C%20%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%20%5C%5C%20Ahora~reemplazemos~en~%28II%29~valor~de~%28x%29%2C%20tenemos%3A%20%5C%5C%20y%3D%20%5Cfrac%7Bx%7D%7B3%7D%20%20%5C%5C%20%20%5C%5C%20y%3D%20%5Cfrac%7B30%7D%7B3%7D%20%5C%5C%20%20%5C%5C%20%5Cboxed%7B%5Cboxed%7By%3D10%7D%7D%20~----%5C%20%5Ctextgreater%20%5C%20segundo~florero~10~flores%20%5C%5C%20%20%5C%5C%20%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%20%5C%5C%20" />

<img src="https://tex.z-dn.net/?f=%20Y%2C%20por~%5Cacute%7Bu%7Dltimo~reemplazemos~en~%28III%29~el~valor~de~%28x%29%2C%20veamos%3A%20%5C%5C%20z%3Dx-7%20%5C%5C%20%20%5C%5C%20z%3D30-7%20%5C%5C%20%20%5C%5C%20%5Cboxed%7B%5Cboxed%7Bz%3D23%7D%7D~----%5C%20%5Ctextgreater%20%5C%20tercer~florero~23~flores%20%5C%5C%20%20%5C%5C%20%20%5C%5C%20%5Cmathbb%7Biiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii%7D%5C%5C%20%20~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Espero~te~sirva%2C%20saludos%21%21%5C%5C%20%20%5C%5C%20" />.