The elimination method involves adding or subtracting the equations to eliminate one variable term, making it a suitable approach for the given system of equations. Option D is correct.
The most effective method for solving the system of equations is elimination (option D).
In this method, you can manipulate the equations by adding or subtracting them to eliminate one variable, simplifying the system and making it easier to solve for the remaining variable. In the provided equations, adding the two equations cancels out the
term, allowing for straightforward solving of the resulting equation.
While substitution, guess and check, and graphing are viable methods, elimination is particularly advantageous when aiming to simplify the system by removing one variable term, enhancing efficiency in solving linear equations.