Question

3x=4(c-d)/d make d the subject

Answer 1

`d = (4c)/(3x + 4)`

Explanation:

`3x = (4(c - d))/(d)`

Multiply both sides by d:

`3xd = 4(c - d)`

Expand:

`3xd = 4c \: - 4d`

+4d on both sides:

`3xd + 4d = 4c`

Factorise d out of the left-hand side:

`d(3x + 4) = 4c`

Divide both sides by (3x +4):

`d = (4c)/(3x + 4)`