Solving Systems of Equations by Elimination

What is the first step in solving a system of equations using the elimination method?

• Multiply both equations by the same number

• Add or subtract the equations to eliminate one variable

• Solve for one variable in terms of the other

• Graph the equations to find the intersection point

When subtracting two equations, what happens if the coefficients of a variable are the same?

• The variable is eliminated

• The variable becomes zero

• The variable doubles

• The variable is halved

How do you handle subtraction of a negative number in the elimination method?

• Multiply it by zero

• Subtract it as a positive number

• Treat it as addition

• Ignore the negative sign

In the example problem, what is the result of dividing both sides of the equation by a negative number?

• The result becomes negative

• The result becomes zero

• The result becomes positive

• The result remains unchanged

What is the final step in solving a system of equations using the elimination method?

• Multiply the solution by a constant

• Graph the solution

• Check the solution by substituting back into the original equations

• Add the solution to another equation