Respuesta :

Answer:

x = 5

Step-by-step explanation:

3x + 10x =65

13x = 65

/13     /13

------------------

x = 5

Answer:

x = 5

Step-by-step explanation:

add both x values --> 13x

divide both sides by 13 ---> 5

so, x = 5

RELAXING NOICE
Relax