Răspunsuri

2014-10-23T14:59:50+03:00
273+a=687
a=687-273
a=414
852-a=210
a=852-210
a=642
a-271=523
a=523+271
a=794
2014-10-23T15:31:13+03:00
273+a=687
a=687-273
a=414
p=414+273=687

852-b=310
b=852-310
b=542
p=852-542=310

c-271=523
c=523+271
c=794
p=794-271=523