Question
Solve the following equation by trial and error method:
z - 3 = 2z - 5
z - 3 = 2z - 5
✓
Answer
The given equation is z - 3 = 2z - 5
We guess and try several values of z to find L.H.S. and R.H.S. and stop when L.H.S. = R.H.S.
When z = 2, we have L.H.S. = R.H.S
So, z = 2 is the solution of the given equation.
We guess and try several values of z to find L.H.S. and R.H.S. and stop when L.H.S. = R.H.S.
|
x
|
L.H.S.
|
R.H.S.
|
|
1
|
1 - 3 = -2
|
2 × 1 - 5 = -3
|
|
2
|
2 - 3 = -1
|
2 × 2 - 5 = -1
|
So, z = 2 is the solution of the given equation.
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