Question

Solve:
$\left(vi\right)$ $7m-1=20$

Answer 1

Given,
$7m-1=20$

Adding $1$ on both the sides

$7m-1+1=20+1$

$\Rightarrow 7m=21$.

Diving both sides by $7$

$\frac{7m}{7}=\frac{21}{7}$

$\Rightarrow m=3$

Hence, the value of $m$ is $3$.