Solving Pair of Linear Equations using Algebraic Method: Elimination Method

The video tutorial covers solving pairs of linear equations using algebraic methods, focusing on the elimination method. It explains the process of eliminating variables by adding or subtracting equations and provides examples to illustrate the technique. The tutorial emphasizes the importance of having the same constants for variables to effectively eliminate them and discusses when to use addition or subtraction based on the signs of the terms. The session concludes with a summary of key points and a reminder that both addition and subtraction yield the same results for the variables.

What is the main advantage of using the algebraic method over the graphical method for solving linear equations?

• It is easier to understand.

• It is faster to solve.

• It provides more accurate values without drawing graphs.

• It requires less mathematical knowledge.

Which method is most commonly used in the algebraic approach to solve linear equations?

• Cross multiplication method

• Elimination method

• Substitution method

• Graphical method

What should you do if the terms you want to eliminate do not have the same constants?

• Ignore the constants and proceed

• Multiply the equations to make the constants equal

• Switch to a different method

• Add a constant to both equations

In the addition method, what happens to terms with opposite signs?

• They are added together

• They are subtracted from each other

• They cancel each other out

• They are multiplied

After finding the value of X using the addition method, how do you find the value of Y?

• Guess the value of Y

• Use the value of X in a new equation

• Use the value of X in either original equation

• Use the value of X in a graphical method

In the subtraction method, what should you do if the terms you want to eliminate have the same sign?

• Add the equations

• Subtract the equations

• Divide the equations

• Multiply the equations

What is the outcome when using either addition or subtraction methods to solve linear equations?

• No solution

• Infinite solutions

• Same values for X and Y

• Different values for X and Y