Solve a System of Linear Equations Using Elimination

What is the preferred method when dealing with equations that have the same coefficients but opposite signs?

• Add the equations

• Subtract the equations

• Divide the equations

• Multiply the equations

After eliminating a variable, what is the next step in solving the system of equations?

• Add a new variable

• Multiply both equations by a constant

• Substitute the known value into one of the equations

• Graph the equations

Why is it important to substitute the found value back into the original equations?

• To check if the solution satisfies both equations

• To find a new solution

• To eliminate another variable

• To simplify the equations further

What does the intersection point of the equations represent in a graph?

• The maximum value of the graph

• The average of the coefficients

• The solution to the system of equations

• The midpoint of the graph

If a system of equations has a solution, what does it mean for the equations?

• They are parallel

• They have no common solution

• They are identical

• They intersect at a point