Question

Rearrange
`d = 1/2(c+4)` to make c the subject.

Answer 1

`c=2d-4`

Explanation:

`d=(c+4)/(2)\\ \\2d=c+4\\\\c=2d-4\\`

Answer 2

c = 2 d - 4

Explanation:

Solve for c:

d = (c + 4)/2

d = (c + 4)/2 is equivalent to (c + 4)/2 = d:

(c + 4)/2 = d

Multiply both sides by 2:

c + 4 = 2 d

Subtract 4 from both sides:

Answer: c = 2 d - 4