Step-by-step explanation:
[tex] \frac{4}{7}x \: + \: \frac{5}{14}x \: = 39 [/tex]
[tex] \frac{8}{14}x \: + \: \frac{5}{14}x \: = 39 [/tex]
[tex] \frac{13}{14}x \: = 39 [/tex]
x = [tex] \frac{\cancel{39} \times 14}{\cancel{13}} [/tex]
x = 3 × 14
x = 42
So, the solution of x is 42
#CMIIW
