Question

a plus b egal 86 a împărţit la b egal 3 rest 2

Answer 1

$a+b=86 \\ a:b=3\ \ rest\ \ 2=>a=3b+2 \\ \\ 3b+2+b=86 \\ 4b+2=86 \\ 4b=84 \\ \\ \boxed{b=21} \\ \\ a=3*21+2 \\ \\ \boxed{a=65}$