<span>х*6=12</span>
<span>х= 12/6</span>
<span>х= 2</span>
<span>_______</span>
<span><span>4*х=12</span></span>
<span><span>х= 12/4</span></span>
<span><span>х=3</span></span>
<span><span>_______</span></span>
<span><span><span>12/х=3</span></span></span>
<span><span><span>х= 12/3</span></span></span>
<span><span><span>х=4</span></span></span>