Question
Solve $: 7m - 1 = 20$
✓
Answer
$7 m -1=20$
$\Rightarrow 7 m =20+1$
$\Rightarrow 7 m =21$
$\Rightarrow m =\frac{21}{7}$
$\Rightarrow m =3$
$\Rightarrow 7 m =20+1$
$\Rightarrow 7 m =21$
$\Rightarrow m =\frac{21}{7}$
$\Rightarrow m =3$
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