Respuesta :

Answer:

[tex]5x + 2x = 12[/tex]

[tex]7x = 72[/tex]

[tex]x = \frac{7}{12} [/tex]

Hope it helpa

Answer:

x=12/7

Step-by-step explanation:

you will add the like terms together so 5x and 2x to get 7x and you will have 7x=12 then the 7 leads and you will divide the 12 by 7 to get 1.71 or in a fraction 12/7