Question

How do you solve for a in v=2(ab+bc+ca)?

Answer 1

`a=(v-bc)/(2(b+c))`

Explanation:

`v=2(ab+bc+ca)`

`v=2ab+2bc+2ca`

`v=2a(b+c)+bc`

`v-bc=2a(b+c)`

`a=(v-bc)/(2(b+c))`