Solve the following equation and check your result.
Q.3 5x + 9 = 5 + 3x
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