Respuesta :

The biggest number that divides equally into 15x and 35 is 5, meaning that 5 is our GCF.

[tex]15x + 35 \\ \\ gcf = 5 \\ \\ 5( \frac{15x}{5} + \frac{35}{5} ) \\ \\ 5(3x + 7) \\ \\ [/tex]

The answer is: 5(3x + 7).