Solve the following equation by trial and error method: 11 + x = … - Vidyadip

Question

Solve the following equation by trial and error method:
$11 + x = 19$

✓

Answer

The given equation is $11 + x = 19$
We try several values of $x$ and find $L.H.S.$ and the $R.H.S.$ and stop when $L.H.S. = R.H.S$.

x	L.H.S.	R.H.S.
$3$	$11 + 3 = 14$	$19$
$4$	$11 + 4 = 15$	$19$
$6$	$11 + 6 = 17$	$19$
$7$	$11 + 7 = 18$	$19$
$8$	$11 + 8 = 9$	$19$

When $x = 8$, we have $L.H.S. = R.H.S.$
So $x = 8$ is the solution of the given equation.

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