Question

-1/4d-2/5d=39
Solve for d
Please explain I don’t understand

Answer 1

d = -60

Explanation:

Given:

-1/4d - 2/5d = 39

-5d-8d/20 = 39

-13/20d = 39

Divide both sides by -13/20

d = 39 ÷ -13/20

= 39 × -20/13

= -60

d = -60