Question

Solve the equation and enter the value of d below. 6d + 7 d= 39​

Answer 1

d=3

Explanation:

13d=39

d=39/13

d=3

Answer 2

Hello!

6d + 7d = 39 <=>

<=> 13d = 39 <=>

<=> d = 39 : 13 <=>

<=> d = 3 => 6 × 3 + 7 × 3 = 39

Good luck! :)