Answer:
The answer is x = -6
PLZ GIVE ME BRAINLIEST!!!!
The equation for a circle is
(x-h)² + (y-k)² = r²
h = your given x
y = your given k
Let's plug everything in!
(x - 5) ² + (y - (-1)) ² = 12²
Your final equation is
(x - 5) ² + (y + 1) ² = 144
<em>Hope I helped! Comment or message me if you have any questions :) </em>
I believe it would be 12, I believe this because its states that it is TWICE as long therefore is made from the same metal so 6x2=12