Respuesta :

Answer:

Keeping in mind the 'x' is in numerator, i got the answer to be 6.

Step-by-step explanation:

2/7x + 1/2x = 40/7 - 1/6x

2/7x + 1/2x + 1/6x = 40/7

2/7x + (3+1)/6x = 40/7

2/7x + 4/6x = 40/7

2/7x + 2/3x = 40/7

(2*3)+(2*7) / (7*3)x = 40/7

(6+14) / 21x = 40/7

20/21x = 40/7

20x = 40*21/7

20x = 40*3

x = 40*3 /20

x = 2*3

x=6