Question

Check whether the value given in brackets is a solution to the given equation or not

$8n+5=21(n=2)$

Answer 1

Given :- $8n+5=21$

Now, put $n=2$

Here,

$$\begin{gathered} L.H.S.=8n+5 \\ =8\times 2+5 \\ =16+5 \\ =21 \end{gathered}$$

$R.H.S.=21$

⇒ $L.H.S.=R.H.S.$

Therefore, $n=2$ is a solution of given equation