Question

sa se afle valoarea nr a,b,c stiind ca a+b=30 a+c=40b+c=50

Answer 1

a+b+a+c+b+c=30+40+50
2a+2b+2c=120
a+b+c=60
30+c=60
c=60-30
c=30
a+50=60
a=60-50
a=10
b+c=50
b+30=50
b=50-30
b=20
Sper ca te-am ajutat :*