Un par de números <img src="https://tex.z-dn.net/?f=%20%5B%28a%2Cb%29%7Ca%20%3E%20b%5D%20" /> b] " alt = " [(a, b)|a > b] " align = "absmiddle" class = "latex - formula"> son entre sí como 8 a 5 <img src="https://tex.z-dn.net/?f=%5Cleft%28%5Cfrac%7Ba%7D%7Bb%7D%3D%5Cfrac%7B8%7D%7B5%7D%5Cright%29" /> además el.
Doble del menor <img src="https://tex.z-dn.net/?f=%20%282b%29%20" /> menos el mayor <img src="https://tex.z-dn.net/?f=%28a%29" /> es de 400.
Hallar la diferencia de los números <img src="https://tex.z-dn.net/?f=%28a-b%29" />
<img src="https://tex.z-dn.net/?f=%5Cmathrm%7B%5Clarge%7BSistema%20%5C%20de%5C%20ecuaciones%3A%7D%7D" />
<img src="https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7D%5Cfrac%7Ba%7D%7Bb%7D%3D%5Cfrac%7B8%7D%7B5%7D%5CRightarrow%20a%3D%5Cfrac%7B8%7D%7B5%7Db%5Ccr%202b-a%3D400%5Cend%7Bcases%7D" />
resolviendo por sustitución
<img src="https://tex.z-dn.net/?f=%202b-%5Cfrac%7B8%7D%7B5%7Db%3D400%5CRightarrow%20%5Cfrac%7B2%7D%7B5%7Db%3D400%5CRightarrow%20%5CRightarrow%20b%3D%5Cfrac%7B5%5Ctimes%20400%7D%7B2%7D%5C%5C%20b%3D1000" />
si <img src="https://tex.z-dn.net/?f=%20b%3D1000%5CRightarrow%20%5Cfrac%7Ba%7D%7B1000%7D%3D%5Cfrac%7B8%7D%7B5%7D%5CRightarrow%20a%3D1600" />
<img src="https://tex.z-dn.net/?f=%5Cmathrm%7B%5Clarge%7BDiferencia%20%5C%20entre%20%5C%20a%5C%20y%5C%20b%7D%7D" />
[img = 10].