Question

como resolver √3 + X = √9 - X

Answer 1

\/3+x = \/9-x
x+x = \/9-\/3
2x = 3-\/3
x = (3-\/3)/2

Verificando:
\/3+(3-\/3)/2 = 3-(3-\/3)/2
2\/3+3-\/3 = 6-3+\/3
\/3+3 = 3+\/3 (V), logo, x = (3-\/3)/2

Answer 2

$\sqrt{3} +x = \sqrt{9} -x \\ \\ x+x = \sqrt{9} - \sqrt{3} \\ \\ 2x = 3- \sqrt{3} \\ \\ x = \frac{3- \sqrt{3} }{2}$