\[ \begin{array}{c} -42=-21 x \\ \square=x \end{array} \] (Type an integer or a simplified fraction). Ask my instructor

To solve for \( x \) in the equation \( -42 = -21x \), you'll want to isolate \( x \). You can do this by dividing both sides of the equation by -21. That gives you: \[ x = \frac{-42}{-21} = 2 \] So, the solution is \( x = 2 \). If you're ever stuck on similar problems, remember to keep the equation balanced by performing the same operation on both sides—it's like a seesaw, and you want it to stay level!