Răspuns :
1n|--||+250|
2n|--|
3n|--||+70|
am scris +70, deoarece 250-180 = 70!
|--| = x
3x+250+70=2450
3x=2130
x=710
R/s:
1n=710+250=960
2n=710
3n=710+70=780
Verificam:
960+710+780=2450
2n|--|
3n|--||+70|
am scris +70, deoarece 250-180 = 70!
|--| = x
3x+250+70=2450
3x=2130
x=710
R/s:
1n=710+250=960
2n=710
3n=710+70=780
Verificam:
960+710+780=2450
a+b+c=2450
a=250+b
a=180+c c=a-180
|----|b
|----|+250+b(a)
|----|250+b-180(c)
2450-250-250+180=2130
2130:3=710(b)
a=250+710=960
c=960-180=780
a=250+b
a=180+c c=a-180
|----|b
|----|+250+b(a)
|----|250+b-180(c)
2450-250-250+180=2130
2130:3=710(b)
a=250+710=960
c=960-180=780