Question

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

Answer 1

Given:

The equation is

`-(1)/(4)d-(2)/(5)d=39`

To find:

The value of d.

Solution:

We have,

`-(1)/(4)d-(2)/(5)d=39`

Taking LCM, we get

`(-5d-8d)/(20)=39`

`(-13d)/(20)=39`

Multiply both sides by 20.

`-13d=39* 20`

Divide both sides by -13.

`d=(39* 20)/(-13)`

`d=-3* 20`

`d=-60`

Therefore, the value of d is -60.