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.
We guess and try several values of $x$ to find $L.H.S.$ and $R.H.S$. and stop when $L.H.S. = R.H.S.$
| x | L.H.S. | R.H.S. |
| $3$ | $\frac{3}{3}=1$ | $4$ |
| $6$ | $\frac{6}{3}=2$ | $4$ |
| $9$ | $\frac{9}{3}=3$ | $4$ |
| $12$ | $\frac{12}{3}=4$ | $4$ |
we have $L.H.S. = R.H.S$
So $x = 12$ is the solution of the given equation.
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