Răspuns :
a+b+c=12
a+b=10
c=a-4⇒a=c+4
10+c=12⇒c=2
a=2+4⇒a=6
b=10-6⇒b=4
R: a=6; b=4; c=2
a+b=10
c=a-4⇒a=c+4
10+c=12⇒c=2
a=2+4⇒a=6
b=10-6⇒b=4
R: a=6; b=4; c=2
a + b + c = 12
a + b = 10
c = a - 4 ⇒ a = 4 + c
a + b + c = 12
10 + c = 12
c = 12 - 10
c = 2
a = 4 + c
a = 4 + 2
a = 6
a + b = 10
6 + b = 10
b = 10 - 6
b = 4
a + b = 10
c = a - 4 ⇒ a = 4 + c
a + b + c = 12
10 + c = 12
c = 12 - 10
c = 2
a = 4 + c
a = 4 + 2
a = 6
a + b = 10
6 + b = 10
b = 10 - 6
b = 4