-6х-4х=-17-53
-10х=-70
х=7
<span><em>53 - 6х= 4х - 17</em></span>
<span>-6х-4х=-17-53</span>
<span>-10х=-70</span>
<span>х=7</span>
1.Угол KCB=42. Угол C=90 =>Угол ACK=132