Question

Solve 60=10\sqrt y-3

Answer 1

$\bf 60=10\sqrt{y-3}\implies \cfrac{60}{10}=\sqrt{y-3}\implies 6=\sqrt{y-3} \\\\\\ \textit{now, we simply raise both at }^2 \\\\\\ (6)^2=(\sqrt{y-3})^2\implies 36=y-3\implies 36+3=y\implies 39=y$