1
x
9
= ?
15
x
1
= ?
0
x
16
= ?
1
x
18
= ?
5
x
3
= ?
0
x
11
= ?
2
x
9
= ?
4
x
3
= ?
5
x
4
= ?
2
x
3
= ?
6
18
9
18
12
15
15
0
20
0
1
x
15
= ?
9
x
1
= ?
0
x
17
= ?
3
x
5
= ?
3
x
1
= ?
12
x
1
= ?
5
x
4
= ?
1
x
8
= ?
6
x
0
= ?
12
x
1
= ?
8
20
15
15
0
0
12
12
3
9
20
0
0
conicimo