Răspunsuri

2014-07-23T00:48:35+03:00
FIe x-numarul
x+238-427=156
x-189=156
x=156+189
x=345
2014-07-23T00:53:06+03:00
(a+238)-427=156

a+238=156+427

a+238=583

a=583-238

a=345
A-nr.
(A+238)-427=156 A+238=427+156 A+238= 583 A=583-238 A=345