<p>but a-b=0</p>
<p>so 0=2(0) which works.</p>
<p>you can’t do division like that when a=b because anything divided by 0 is undefined.</p>
<p>but a-b=0</p>
<p>so 0=2(0) which works.</p>
<p>you can’t do division like that when a=b because anything divided by 0 is undefined.</p>