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a:b=1 rest c;
a+b+c=94
b=c+9


Răspuns :

a=bx1+c
a+b+c=94
b=c+9
bx1+c+c+9+c=94
b+3c+9=94
b+3c=94-9
b+3c=85
c+9+3c=85      l am   inlocuit  peb
4c=85-5=80
4c=80
c=20
b=c+9
b=20+9
b=29
a=bx1+c
a=29x1+20
a=29+20
a=49