Solve a System of Linear Equations Using Elimination

Why is substitution not preferred in the given problem?

• Because the equations are already solved.

• Because the coefficients are the same.

• Because none of the variables are easily isolated.

• Because the variables are already isolated.

What is the purpose of finding the least common multiple (LCM) in the elimination method?

• To eliminate all variables.

• To make the coefficients of one variable the same in both equations.

• To simplify the equations.

• To solve the equations directly.

What should be done after aligning the coefficients of a variable using multipliers?

• Divide the equations by the LCM.

• Multiply the equations again.

• Subtract the equations to eliminate a variable.

• Add the equations together.

After eliminating one variable, what is the next step?

• Find a new LCM.

• Multiply the equations by another multiplier.

• Solve for the remaining variable.

• Rearrange the equations.

How can you verify the solution obtained from the elimination method?

• By multiplying the solution by the LCM.

• By adding the solution to the original equations.

• By finding another solution.

• By checking if the solution satisfies both original equations.