Solve 2x-3=5 by using trial and error method
Answers
By using trial and error method the required solution of the equation 2x - 3 = 5 is x = 4
Given :
The equation 2x - 3 = 5
To find :
Solve the equation by using trial and error method
Solution :
Step 1 of 2 :
Write down the given equation
Here the given equation is 2x - 3 = 5
LHS = 2x - 3
RHS = 5
Step 2 of 2 :
Solve using trial and error method
Putting x = 1 we get
LHS = (2 × 1) - 3 = 2 - 3 = - 1
RHS = 5
∴ LHS ≠ RHS
∴ x = 1 is not the required solution
Putting x = 2 we get
LHS = (2 × 2) - 3 = 4 - 3 = 1
RHS = 5
∴ LHS ≠ RHS
∴ x = 2 is not the required solution
Putting x = 3 we get
LHS = (2 × 3) - 3 = 6 - 3 = 3
RHS = 5
∴ LHS ≠ RHS
∴ x = 3 is not the required solution
Putting x = 4 we get
LHS = (2 × 4) - 3 = 8 - 3 = 5
RHS = 5
∴ LHS = RHS
∴ x = 4 is the required solution
Hence by using trial and error method the required solution of the equation 2x - 3 = 5 is x = 4
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L.H.S=2x-3=5
R.H.S=5
L.H.S(2×1)-3=2-3=-1
R.H.S=5
LHS not equal to RHS
X=1not required for solution