When solving a quadratic simultaneous equation, what is typically the second step?

When solving a quadratic simultaneous equation, the second step after setting up the equations is to substitute the quadratic into the linear equation. This is often done after you have expressed one variable in terms of another using one of the equations. By substituting, you create a new equation that only involves one variable, making it easier to solve.

This approach is effective because it allows you to reduce the problem into a simpler form. Once you have one equation in one variable, you can solve that equation for its variable, and then back-substitute to find the values for the other variable.

This method is a crucial step in simultaneous equations because it leverages the relationship between the two equations to find a solution that satisfies both.