Question

Solve for d.
41 = 12 d _ 7
d

Answer 1

`d=4`

Explanation:

`41=12d-7`

In this scenario we need to isolate the variable.

Start by adding 7 to both sides:

`41+7=12d-7+7`

`48=12d`

Divide both sides by 12:

`(48)/(12)=(12d)/(12)`

`d=4`

Substitute 4 for d to check our answer:

`41=12d-7\\41=12(4)-7\\41=48-7\\41=41\rightarrow\text{correct!}`

Therefore the answer is:

`d=4`