Solve the following equation and check your result.

Q.3     5x + 9 = 5 + 3x

Answers (2)

We have 

                     5x + 9 = 5 + 3x 

   Transposing 3x to the LHS and 9 to the RHS, we get:

                     5x - 3x = 5 - 9

or                      2x = -4

Dividing both sides by 2 :

                   x = -2

Check :-    Put x = - 2 in both LHS and RHS

               LHS :-  5x + 9 = 5(-2) + 9 =  -10 + 9 = -1

               RHS :-  5 + 3x = 5 + 3(-2) = 5 - 6 = -1

          Hence,                 LHS = RHS 

5x-3x+9=5

2x+9=5

2x=5-9

2x=-4

x= -2

hence the value of x is -2

 

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