Question 854916
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Hi,
x+1=19-x    |Adding x to both sides to isolate x on one side of EQ
2x+1 = 19   |Subtracting 1 from both sides to isolate x on one side of EQ
2x = 18
 x = 9

{{{sqrt(9-x^2)/sqrt(3-x)}}} when   -3<_x<3 
{{{sqrt(9-x^2)/sqrt(3-x) = (cross(sqrt(3-x))sqrt(3+x))/cross(sqrt(3-x))= sqrt(3+x)}}}