• a+b=950
• a-b=150→a=b+150
______________
? a,b
______________
Grafic:
a: |-------|150l
b: |-------| } 950
2 p.e+150=950
2 p.e=950-150
2 p.e=800
1 p.e=800:2
1 p.e=400 (b)
400+150=550 (a)
Algebric:
a+b=950
a=b+150
b+150+b=950
2xb+150=950
2b=950-150
2b=800
b=800:2
b=400
400+150=550 (a)
Verificare:
400+550=950 (A)
Răspuns:
a=550
b=400
Succes !
Suzuya
