



 
Kanika, The equation of the sphere with center $(a, b, c)$ and radius $r$ is \[(x  a)^2 + (y  b)^2 + (z  c)^2 = r^2.\] If you have an equation that is the equation of a sphere and you can put it in the form above then the center is $(a, b, c).$ I hope this helps,  


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