Problem:
Find all real solutions to $\sqrt{x+4}+\sqrt{13 x+6}=7$
Answer:
$\left\{\left\{x\to \frac{1}{72} \left(331-7 \sqrt{1189}\right)\right\}\right\}$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/sqrt_equations/17274.txt'}