Răspuns :
1) Metoda figurativa
V |...................|.........|
G|....................|
70-10=60
60:2=30 (G)
30+10=40 (V)
2) Metoda algebrica
V=G+10
G+10+G=70
2G=60
G=30
V=40
V |...................|.........|
G|....................|
70-10=60
60:2=30 (G)
30+10=40 (V)
2) Metoda algebrica
V=G+10
G+10+G=70
2G=60
G=30
V=40
a+b=70 a=b+10 b+b+10=70 2b+10=70 2b=70-10 2b=60 b=60:2 b=30 a=30+10 a=40 verific 40+30=70