Răspuns :
a+b=195
a+75=b+40
a=b+40-75
a=b-35
b-35+b=195
2b=195+35
2b=230
b=115
a=115-35
a=80
a+75=b+40
a=b+40-75
a=b-35
b-35+b=195
2b=195+35
2b=230
b=115
a=115-35
a=80
a+75=b+40
a-b=-35/*(-1)
b-a=35=> b=35+a
35+a+a=195
2a=160
a=80
b=115