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
What is the value of the expression 2x - 2y + 4 at x = 4 at y=0? | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following expressions shows the value of x in terms of y, if 3x + 4y = 7 ? | |||
| Right Option : A | |||
| View Explanation | |||
What is the value of the expression | |||
| Right Option : B | |||
| View Explanation | |||
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Prisha Gupta
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10thThird 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 ...
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8thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
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