a+b+c=98
b:c=2 rest 5
b=2c+5
a:(b-c)=2 rest 3
a:(2c+5-c)=2 rest 3
a:(c+5)=2 rest 3
a=2(c+5)+3
a=2c+10+3
a=2c+13
2c+13+2c+5+c=98
2c+2c+c=98-13-5
5c=85-5
5c=80
c=80:5
c=16
a=2c+13
a=2×16+13
a=32+13
a=45
b=2c+5
b=2×16+5
b=32+5
b=37
proba:45+37+16=98
sper că te-am ajutat!
