Răspunsuri

2014-10-31T14:22:04+02:00
X-48=67
x=115
46-x=18
x=46-18=28
72=x+39
x=72-39=33
35=x-45
x=45+35=80
2014-10-31T14:24:44+02:00
X-48=38+29
x-48=67
x=67+48
x=115

46-x=91-73
46-x=18
x=46-18
x=28

45+27=x+39
x+39=72
x=72-39
x=33

62-27=x-45
x-45=35
x=35+45
x=80