Răspuns :
x primul nr
x+2.8 al doilea nr
x+x+2.8=12.6 x+2.8= 4.9+2.8=7.7
2x=12.6-2.8
2x=9.8
x=9.8/2=4.9
Primul nr 4.9
Al doilea nr 7.7
4.9+7.7=12.6
x+2.8 al doilea nr
x+x+2.8=12.6 x+2.8= 4.9+2.8=7.7
2x=12.6-2.8
2x=9.8
x=9.8/2=4.9
Primul nr 4.9
Al doilea nr 7.7
4.9+7.7=12.6