# I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl

I know this is the same question, but I somewhat understand how to get the answer but I was wondering if someone could break down the steps for me. Because I am working very hard to do well on a test and I need to know the steps for the future. Thanks oh so much! :)

Answered below. You don't need to post your question again.

## Sure! I'd be happy to explain the steps to solve these problems.

Problem 1: Solve for the variable r in the equation C = 2πr

Step 1: Start by isolating the variable you want to solve for. In this case, we want to isolate r.

Step 2: Divide both sides of the equation by 2π to cancel out the coefficient of r. This gives us: C / (2π) = r

So, the solution is r = C / (2π).

Problem 2: Solve for the variable l in the equation S = B + (1/2)Pl

Step 1: Again, start by isolating the variable you want to solve for. In this case, we want to isolate l.

Step 2: Subtract B from both sides of the equation to isolate the term involving l. This gives us: S - B = (1/2)Pl

Step 3: Multiply both sides of the equation by 2/P. This cancels out the coefficient of l, giving us: 2(S - B) / P = l

So, the solution is l = 2(S - B) / P.

I hope this breakdown of the steps helps you understand how to solve these types of problems! Best of luck with your test!