Răspuns :
a+b+c=?
a/4=23 => a=4x23=92
b-a=c-b
b=159
159-92=c-159
67=c-159
=>c=67+159
c=226
a+b+c=92+159+226=477
a/4=23 => a=4x23=92
b-a=c-b
b=159
159-92=c-159
67=c-159
=>c=67+159
c=226
a+b+c=92+159+226=477