Verified Answer :

R - 2k = 15......subtract R from both sides
-2k = 15 - R...divide both sides by -2
k = -15/2 + 1/2R

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 \(k=-\frac{15-R}{2}\).