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
Which of the following expressions shows the value of x in terms of y, if -19x + y = 4 ? | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following values of x and y satisfy the equation 2x-y=-3? | |||
| Right Option : C | |||
| View Explanation | |||
In the linear equation 20x - 3y = 3 , if x = 3, the value of 'y' is _________________ | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
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9thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
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8thIt 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
