ELIMINATION METHOD WORKSHEETS

Elimination method worksheets :

Here we are going to see some practice questions of the topic elimination method. You can also find solution for each problems with detailed explanation.

Steps Involved in Elimination Method

Definition :

A ordered pair (x₁,y₁) s called a solution to a linear system in two variables if the values x = x₁ and y = y₁ satisfy all the equations in the system.

Procedure for elimination method :

• Using the elimination method, we can  eliminate any one of the variables by combining both equations. 
• We can do elimination if and only if the coefficients are same. If they are different, then we have to make the coefficients as same and then we may continue elimination.
• If the coefficients along with the signs are same, we may do elimination by subtracting both the equations.
• If the signs are different and coefficients are same, then we may do elimination by adding both the equations.
• By applying the value of variable we get from the previous step in either of the equations, we will get the value of the remaining variable.

The flow chart given below will help us to understand the procedure better.

Solve each of the following system of equations by elimination method.

• x + 2 y = 7 , x – 2 y = 1     Solution

• 3 x + y = 8 , 5 x + y = 10    Solution

• x + y/2 = 4 , x / 3 + 2 y = 5   Solution

• 11 x - 7 y = x y , 9 x - 4 y = 6 x y   Solution

• 3/y + 5/x = 20/x y , 2/x + 5/ y = 15/x y   Solution

• 8 x – 3 y = 5 x y , 6 x – 5 y = -  2 x y    Solution

• 13 x+ 11 y = 70 ,11 x + 13 y = 74     Solution

• 65 x – 336 y = 97 , 33 x – 65 y = 1     Solution

• 15/ x + 2/y = 17 , 1/x + 1/y = 36/5  Solution

• 2/x + 2/3y  = 1/6,3/x + 2/y = 0    Solution

Related topics

• Solve by graphing method
• Solve by substitution
  
• Synthetic Division
• Rational Expressions
• Rational Zeros Theorem
• LCM -Least Common Multiple
• GCF-Greatest Common Factor
• Simplifying Rational Expressions
• Factoring Polynomials
• Factoring a Quadratic Equation
• Factoring Worksheets
• Framing Quadratic Equation From Roots
• Framing Quadratic Equation Worksheet
• Remainder Theorem
• Relationship Between Coefficients and roots
• Roots of Cubic equation
• Roots of Polynomial of Degree4
• Roots of Polynomial of Degree5

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