Răspunsuri

2014-05-19T10:12:06+03:00
A+b+c/3=6
a+b+c=6*3
a+b+c=18
a=6
6+b+c=18
b+c=18-6
b+c=12

ma=b+c/2
ma=12/2
ma=6
2014-05-19T10:13:09+03:00

(a+b+6):3=6

a+b+6=3x6=18

a+b=18-6

a+b=12

=>(a+b):2=...

12:2=6

sper ca ti-am fost de ajutor