7.12+x-5.12=5.12
x=10.24-7.12
<em>x=3.12</em>
3/7 = 15/35
2/5 = 14/35
15/35 > 14/35 ---> 3/7 > 2/5
===============================
2/3 = 22/33
7/11 = 21/33
22/33 > 21/33 ---> 2/3 > 7/11
38×2=76та как бесектриса делит по полам
<span>8,72/21,8=0,38/у
0,4=</span>0,38/у
y=0.95