Răspuns :
Răspuns:
2198=2•(50•b + 50•11+b•11)
2198=2·(50b+550+11b)
2198=2(61b+550)
2198=122b+1100
2198-1100=122b
1098=122b
b=1098:122=>b=9
[tex]2198=2*(50*b + 50*11+b*11)[/tex]
[tex]2*(50b+550+11b) = 2198[/tex]
[tex]2*(61b+550)=2198[/tex]
[tex]122b+1100=2198[/tex]
[tex]122b=2198-1100[/tex]
[tex]122b=1098=> b=\frac{1098}{122} => b=9[/tex]