Respuesta :

Answer:

B.) 4

I hope this is correct and helped! :)

Step-by-step explanation:

3(2x+9)+7x = 79

Use distrubutive property

6x+27+7x = 79

Add 6x an 7x

13x+27 = 79

Subtract 27 from each side

13x = 52

Divide each side by 13

X= 4