Find the value of the variable by trail and error method.
$3x=16$ .

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Solution

Finding the value of $x$ is
Value of $x$
L.H.S $=3×x$
R.H.S $=16$
L.H.S $=$ R.H.S (Yes/No)
$0$
$3×0=0$
$16$
NO
$\frac{1}{2}$
$3× \frac{1}{2} = \frac{3}{2}$
$16$
NO
$\frac{16}{3}$
$3× \frac{16}{3} =16$
$16$
YES
$\frac{15}{3}$
$3× \frac{15}{3} =15$
$16$
NO
Hence the value of $x$ is $\frac{16}{3}$

Value of $x$	L.H.S $=3×x$	R.H.S $=16$	L.H.S $=$ R.H.S (Yes/No)
$0$	$3×0=0$	$16$	NO
$\frac{1}{2}$	$3× \frac{1}{2} = \frac{3}{2}$	$16$	NO
$\frac{16}{3}$	$3× \frac{16}{3} =16$	$16$	YES
$\frac{15}{3}$	$3× \frac{15}{3} =15$	$16$	NO

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