Question
Solve the following equation by trial and error method:
$\frac{\text{x}}{3}=4$
$\frac{\text{x}}{3}=4$
✓
Answer
The given equation is $\frac{\text{x}}{3}=4$ We guess and try several values of x to find L.H.S. and R.H.S. and stop when L.H.S. = R.H.S.
When x = 12, we have L.H.S. = R.H.S So x = 12 is the solution of the given equation.
| x | L.H.S. | R.H.S. |
| 3 | $\frac{3}{3}=1$ | 4 |
| 6 | $\frac{6}{3}=2$ | 4 |
| 9 | $\frac{9}{3}=3$ | 4 |
| 12 | $\frac{12}{3}=4$ | 4 |
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