3a+3b+3c=
2x+2y-2z=
8+4a+16b=
5x-5y+5z=
15+3a+3b=
daca x=3 si
a+b=9.calculati
2a+2b+2x=
10x-(2a+2b)=
x+8a+8b=
xa+xb=
(3a+3b-2x)=
(2a+2b-3x)=
Scrieti ca produs de doua numere naturale
4x3+4x2=4x5
3x17+17-9=17x4-9 (aici probabil ai scris gresit minus in loc de x
31x4+31=31x5
19x7+19x3-19x8=19x(7+3-8)=19x2