Question

How do you solve `\frac { \pi } { 7} = \frac { a } { 4}`?

Answer 1

`a = (4pi)/7`

Explanation:

Multiple each side of the equation by `4` to isolate and solve for `a` while keeping the equation balanced:

`4 * pi/7 = 4 * a/4`

`(4pi)/7 = cancel(4) * a/cancel(4)`

`a = (4pi)/7`