Question

Clip 136 Rearranging Simple Formulae - Question 4

Standard Questions
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Make r the subject of x=e+r/d

Answer 1

r = d(x-e)

or r = dx - de

Explanation:

x = e +
`(r)/(d)` subtract e from both sides.

x - e =
`(r)/(d)` Multiply both sides by d

d(x -e) = r

or

dx -de = r