Question

Repede va roooooogggg ! Dau coroana

Answer 1

Răspuns:

a/2=b/3=c/6=k

a=2k

b=3k

c=6k

2a+3b-c=42

2·2k+3·3k-6k=42

4k+9k-6k=42

7k=42=>k=42:7=>k=6

a=2·6=12

b=3·6=18

c=6·6=36

Answer 2

Răspuns

Salutare !

{ a , b , c ) direct proportional cu { 2,3,6}

2 x a + 3 x b - c = 42

a/2 = b/3 = c/6

a = 2K

b = 3K

c = 6K

4K + 9K - 6k = 42

7k = 42

K = 6

a = 12

b = 18

c = 36

Succes !

#Albert1001