Răspuns:
6x(5+4)-o+10=29-7:7
6x9-o+10=29-1
54-o+10=28
54-o=28-10
54-o=18
o=54-18
o=36
33:(r+19)=80:2:5:4:2
33:(r+19)=40:5:4:2
33:(r+19)=8:4:2
33:(r+19)=2:2
33:(r+19)=1
r+19=33:1
r+19=33
r=33-19
r=14
0+[(1+2x3):c+5]:6=(78-69):9
0+[(1+6):c+5]:6=9:9
0+(7:c+5):6=1
0+(7:c+5)=1x6
7:c+5=6
7:c=6-5
7:c=1
c=7:1
c=7
10x3x9-30:3:10+11=7xf
30x9-10:10+11=7xf
270-1+11=7xf
269+11=7xf
280=7xf
f=280:7
f=40
(607-299):b+299=607-231
308:b+299=376
308:b=376-299
308:b=77
b=308:77
b=4
1x2x3x4-5+6=7x8-(9+10)-g
6x4-5+6=56-19-g
24-5+6=37-g
19+6=37-g
25=37-g
g=37-25
g=12
88:2:4+10xe=99+6:3
44:4+10xe=99+2
11+10xe=101
10xe=101-11
10xe=90
e=90:10
e=9
(s+sxs):8=s
(7+7x7):8=
(7+49):8=
54:8=7