Explain and help solve f equals 1/2(r+6.5)

solve for r

f = 1/2 (r+6.5)

Solve for what? We already have an equation solving for f.

To solve the equation f = 1/2(r + 6.5), we want to isolate the variable "r".

1. Distribute the 1/2 to both terms inside the parentheses:
f = 1/2 * r + 1/2 * 6.5

2. Simplify the expression:
f = 1/2 * r + 3.25

3. Subtract 3.25 from both sides of the equation to isolate the term with "r":
f - 3.25 = 1/2 * r

4. In order to simplify the equation further, we can multiply both sides by 2:
2 * (f - 3.25) = 2 * (1/2 * r)

This cancels out the fraction:

2f - 6.5 = r

So, the expression f = 1/2(r + 6.5) can be rewritten as r = 2f - 6.5.