Suppose we have an equation,

3x + 2 = 8

We had found it’s solution using trial & error.

But, that is a very long method.

Let’s solve the equation by other methods

####
**
Method 1
**

3x = 8 + 2

*
Putting 2 on right side
*

3x = 8 − 2

3x = 6

*
3 multiplied on left side will be 3 divided on right side
*

x = 6/3

x = 2

So,
**
x = 2
**
is the solution

####
**
Method 2
**

3x + 2 = 8

*
Subtracting 2 on both sides
*

3x + 2 − 2 = 8 − 2

3x = 6

*
Dividing 3 on both sides
*

3x/3 = 6/3

x = 2

So,
**
x = 2
**
is the solution

####
**
Solve x + 3 = 0
**

x + 3 = 0

*
Putting 3 on right side
*

x = 0 − 3

x = −3

So,
**
x = −3
**
is the solution

####
**
Solve x − 7 = 1
**

x − 7 = 1

*
Putting 7 on right side
*

x = 1 + 7

x = 8

So, x = 8 is the solution

####
**
Solve 5x = 25
**

5x = 25

*
5 multiplied on left side will be
*
*
5
*
*
divided on right side
*

x = 25/5

x = 5

So,
**
x = 5
**
is the solution

####
**
Solve
**
**
x
**
**
/
**
**
3
**
**
= 2
**

x/3 = 2

*
3 divided on left side will be
3 multiplied on right side
*

x = 2 × 3

x = 6

So,
**
x = 6
**
is the solution

####
**
Solve
**
**
8x
**
**
/
**
**
11
**
**
− 3 = 5
**

8x/11 − 3 = 5

8x/11 = 5 + 3

8x/11 = 8

x = 8 × 11/8

x = 11

So,
**
x
**
**
= 11
**
is the solution