Question

Suma a trei nr este 92.Stiind ca a+b=55,b+c=43,Sa se afle nr​

Answer 1

Răspuns:

a+b+c=92

55+c=92=>c=92-55=>c=37

a+43=92=>a=92-43=>a=49

a+b=55=>49+b=55=>b=55-49=>b=6

Answer 2

a+b+c=92

a+b=55

b+c=43

55+c=92 /-

c=37

b+37=43 /-

b=6

a+6=55 /-

a=49