Question

X= 7 is the solution of the equation​

Answer 1

Given :   x - 4 = 3

( complete Question )

To Find : is x = 7 is the solution of the Equation :

Solution:

x - 4 = 3

Method 1 : Solutions of the equations satisfy the equation

Substitute x = 7 in the equation

7 - 4 = 3

=> 3 = 3

Hence Equation is satisfied

so x = 7 is the solution

Method  2 :  Solve for the x  and check whether x = 7 or not

x - 4 = 3

Add 4 both sides

=> x - 4 + 4 = 3 + 4

=> x = 7

As  x = 7 hence it is the solution of the equation​

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