Question

7) c/a=d-r, for a

thanks

Answer 1

a = c/(d - r)

Explanation:

Multiply both sides by a

(c/a)a = (d - r)*a Notice how this is written. You need to introduce brackets on the right because both d and r are multiplied by a.

c = (d - r)*a

Divide both sides by (d - r)

c/(d - r) = a*(d - r)/(d - r)

c/(d - r) = a