Răspuns :
A+b=400
A=b:3->b=ax3
A=? B=?
a|—|
B|—|—|—|
1)400:4=100(a)
2)100x3=300(b)
V:100+300=400
Sau
a+b=400
A+3a=400
4a=400
A=400:4
A=100
B=100x3
B=300
V: 100+300=400
Sper ca te-am ajutat! Succes!
A=b:3->b=ax3
A=? B=?
a|—|
B|—|—|—|
1)400:4=100(a)
2)100x3=300(b)
V:100+300=400
Sau
a+b=400
A+3a=400
4a=400
A=400:4
A=100
B=100x3
B=300
V: 100+300=400
Sper ca te-am ajutat! Succes!