Answer:
\(k=-\frac{15-R}{2}\)
Step-by-step explanation:
We have been given an equation \(R-2k=15\). We are asked to solve our given equation for k.
We will use opposite operations to solve for k.
Subtract R on both sides:
\(R-R-2k=15-R\)
\(-2k=15-R\)
Divide both sides by -2.
\(\frac{-2k}{-2}=\frac{15-R}{-2}\)
\(k=-\frac{15-R}{2}\)
Therefore, the solution for our given equation is \(k=-\frac{15-R}{2}\).