Finding Solutions of Linear Equations in Two Variables
Finding Solutions of Linear Equations in Two Variables
Let 
, where a, b, c are real numbers such that 
and 
. Then, any pair of values of x and y which satisfies the equation , is called a solution of it.
Consider the equation 3x-2y=5. We observe that x= 3, y=2 is a solution of 3x-2y=5 because when we substitute the value of x and y
we have:
But, x=3, y= -2 is not its solution, because
i.e. when x= 3 and y = -2.
Illustration: Show that (x=1, y=1) as well as (x=2,y=5) is a solution of 4x-y-3=0
Solution: If we put x=1 and y=1 in the given equation, we have
So, (x=1, y=1) is a solution of 4x-y-3=0
If we put (x=2, y=5) in the equation 4x-y-3=0 we have
So, (x=2, y=5) is a solution of 4x-y-3=0.
So we can say that a linear equation can have more than one solution. In fact, we can find as many solutions as we require. To find solution of a linear equation we can substitute a value of our choice for one variable say x and can then find the value of y.
For Example Let x =0 in 4x-y-3=0
The equation reduces to
So,(0,-3) is another solution of 4x-y-3=0.
Thus, a linear equation in two variables has infinitely many solutions.
Which of the following ordered pairs represents a solution for the linear equation 3x - 2y = 2 ? | |||
| Right Option : B | |||
| View Explanation | |||
The degree of a polynomial and _________________ are equal. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following ordered pair represents a solution for the linear equation 3x + 4y = -6? | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
