Question

multiple-choice question
what is your first step?
solve one of the equations for either x or y.
substitute one of the expressions into the other equation.
plug in a value for x and see what you get for y.
rewatch
submit

Explanation:

This question is about the substitution method for solving systems of equations. The first step in the substitution method is to solve one of the equations for either \( x \) or \( y \) so that you can substitute that expression into the other equation. Substituting comes after solving for a variable, and plugging in a random value is not a systematic first step for solving a system.

Answer:

A. Solve one of the equations for either x or y.