1/3(21-3a=6-a
what is the value of a

Step-by-step explanation:

First remember, a(c-d)=ac-ad

1/3(21-3a)=6-a then

21/3 - 3/3a =6-a

7-a = 6-a

here it is impossible because if we add a to both sides we get 6=7 which is obviously not true. You might have wrote the question wrong, let me know.

what is the question?

step-by-step explanation:

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: