9187 -y : 409 = 892 - 102
<=> 9187 -y : 409 = 7819
<=> y : 409 = 9187 - 7819
<=> y : 409 = 1368
<=> y = 1368 . 409
<=> y = 559512
8.6+ 288: [x-3]2 = 50
48+288: [x-3]2 = 50
288: [x-3]2 = 50-48
288: [x-3]2 = 2
[x-3]2=144
x-3=12
x=15
633 .85 : x = 897
53805:x=897
x=17935/299
9187 -y : 409 = 892 - 102
<=> 9187 -y : 409 = 7819
<=> y : 409 = 9187 - 7819
<=> y : 409 = 1368
<=> y = 1368 . 409
<=> y = 559512
9187 -y : 409 = 892 - 102
<=> 9187 -y : 409 = 7819
<=> y : 409 = 9187 - 7819
<=> y : 409 = 1368
<=> y = 1368 . 409
<=> y = 559512