Răspuns :
a+b=125
a-b= 75
a = 75+b
75 + b +b = 125
2b =125 - 75
2b = 50
b=50:2
b=25
a=75+25 = 100
a-b= 75
a = 75+b
75 + b +b = 125
2b =125 - 75
2b = 50
b=50:2
b=25
a=75+25 = 100
a+b = 125
a-b = 75
-------------- (adunam)
2a \= 200 => a = 200:2 => a = 100
a+b = 125 => 100 + b = 125 => b = 125-100 => b = 25
a-b = 75
-------------- (adunam)
2a \= 200 => a = 200:2 => a = 100
a+b = 125 => 100 + b = 125 => b = 125-100 => b = 25