What is the correct first step to solve the equation $\sqrt{x} - 7 = 10$?

Square both sides to get $x - 49 = 100$.

Add 7 to both sides to get $\sqrt{x} = 17$.

Subtract 10 from both sides to get $\sqrt{x} - 17 = 0$.

Add 10 to both sides to get $\sqrt{x} + 3 = 0$.

Solving Radical Equations Practice — Grade 9 math