Question

afla numerele a,b si c stiind ca a+b+c=20 a+b=c a+c= 16

Answer 1

a+b+c = 20
a+b = c
a+c = 16

a+b+c = 20
c+c = 20
2c = 20
c = 20/2
c = 10.

a+c = 16
a+10 = 16
a = 16-10
a = 6.


a+b+c = 20
6+b+10 = 20
16+b = 20
b = 20-16
b = 4.


Verificare: a+b+c = 6+4+10 = 10+10 = 20.



I hope I helped you :)

Answer 2

a=?
b=?
c=?

a+b+c=20
a+b=a+c=16 (2a+b+c=16)

a= 20-16
a= 4

4+b+c=20

b= 16:2
b= 8

a+b= 8+4
a+b= 12

c= 20-12
c= 8


VERIFICARE: a+b+c= 20
4+8+8=
=12+8=
=20