Question

Solve formula for r 9k+ar=r-3y

Answer 1

r=− 3(y+3k)/a−1

Hope that helps!

Answer 2

r = 3(3k + y)/(1 - a)

Explanation:

9k + ar = r - 3y

r - ra = 9k + 3y

r(1 - a) = 3(3k + y)

r = 3(3k + y)/(1 - a)