20 POINTS! WILL MARK BRAINLIEST!

If the equation for the diagram below is 25=13+2r, what should go in the blank circle?

20 POINTS WILL MARK BRAINLIEST If the equation for the diagram below is 25132r what should go in the blank circle class=

Respuesta :

Step-by-step explanation:

[tex]25 = 13 + 2r \\ 25 - 13 = 2r \\ 12 = 2r \\ \frac{12}{2} = r \\6 = r[/tex]