Альтернатива:49
не уверена извини
<span>11/х-2=11/2</span>
<span>11/x-2=5.5</span>
<span>11/x=5.5-2</span>
<span>11/x=3.5</span>
<span>x=11/3.5</span>
<span>x=3.15</span>
(12/√3-√3)*√3=(12√3/(√3*√3)-√3)*√3=(12√3/3-√3)*√3=(4√3-√3)*√3=3√3*√3=3*3=9