Finding Value using Substitution
Finding Value using Substitution
Finding Value Using Substitution
To find solutions for a linear equation in two variables we can follow the following steps:
Illustration: Find a pair of solution for the equation 3x+ 2y= 8
Solution: To find the solution for this equation
Let x= 2
Putting the value of x in the equation we get
3(2)+2y= 8
6+2y=8
2y=8-6
2y=2
y=1
(2,1) is a solution for this equation.
Illustration: In a linear equation 10x-3y= 2. If the value of x = 2 find the value of y
Solution: Putting the value of x in the equation
10x-3y=2
10(2)-3y=2
20-3y=2
-3y= 2-20
-3y= -18
y=6
The value of x when y = 3 in the equation 2x+y=9 is _______________ | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following expressions shows the value of x in terms of y, if 8x - 14y = 7 ? | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following values of x and y satisfy the equation 2x-y=-3? | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [20]
I 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
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Manish Kumar
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
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Ayan Ghosh
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Manya
8thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
