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- What is algebraic equation
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- What is Linear equation in one Variable
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- Solving Equations which have Linear Expressions on one Side and Numbers on the other Side
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- Word Problem
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- Solving Equations having the Variable on both Sides
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- Reducing Equations to Simpler Form
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- Equations Reducible to the Linear Form

In this page we have *NCERT Solutions for Linear equations Class 8 Mathematics * for
Exercise 2.3 . Hope you like them and do not forget to like , social share
and comment at the end of the page.

1) Validation or check result means to verify the answer by putting the values in the linear equation

2) Calculate the LHS(Left Hand side) by substituting the variable and similary calculate the RHS(Right hand side) by substituting the variable

3) Both the LHS and RHS should be equal

Solve and check result: 3

3

Transposing 2

3

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 3

R.H.S = 2

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result: 5

5

Transposing 3

5

2

Dividing both sides by 2

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 5

R.H.S = 3

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result

5

5

Transposing 3

5

2

Dividing both sides by 2, we obtain

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 5

R.H.S = 5 + 3

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result:

4

4

Transposing 2

4

2

Dividing both sides by 2, we obtain

z=3/2

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 4

R.H.S = 6 + 2

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result:

2

2

Transposing

2

3

Dividing both sides by 3, we obtain

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 2

R.H.S = 14 −

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result:

8

8

8

Transposing 3

8

5

5x=0

x=0

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 8

R.H.S = 3(

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result:

Multiplying both sides by 5, we obtain

5

5

Transposing 4

5

Let us evaluate both the LHS and RHS for validate the answer

L.H.S =

R.H.S = = 40

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result:

Transposing 7x/15 on LHS and 1 on RHS

Multiplying by 15 on both sides

10x-7x= 30

3x=30

Dividing by 3 on both the sides

x=10

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = =23/3

R.H.S= =23/3

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result

Transposing

3y=21/3

3y=7

Dividing both sides by 3, we obtain

y=7/3

Let us evaluate both the LHS and RHS for validate the answer

L.H.S. = R.H.S.

It proves that result is correct

Solve and check result:

Transposing 3

8/5= 2m

Dividing both sides by 2

m=4/5

Let us evaluate both the LHS and RHS for validate the answer

L.H.S = 3m=12/5

R.H.S = 5m –(8/5)=12/5

L.H.S. = R.H.S.

It proves that result is correct

2) Solve and check the result 3x – 4 = 1 – 2 x

3) Solve and check the result $ \frac {m}{2} -11= 2$

4) Solve and check the result $ 11y =6y - \frac {1}{3}$

5) Solve the check the result $ \frac {x}{5} + 8=30}

Download Linear equation Exercise 2.3 as pdf

Class 8 Maths Class 8 Science