Question

diferența A două numere este 161 iar daca le împărțim obținem câtul 5 si restul 21.afla numerele

Answer 1

a-b=161
a:b=5 rest 21
a=5b+21
5b+21-b=161
4b+21=161
4b=161-21
4b=140
b=140:4
b=35
a=5*35+21
a=175+21
a=196

Answer 2

$a-b=161 \\\\ a:b=5 \ rest \ 21 \longrightarrow \underline{a=5b+21} \\\\\\ 5b+21-b=161 \\\\ 4b=161-21 \\\\ 4b=140 \ \ |:4 \\\\ \boxed{b=35} \\\\ a=5*35+21 \\\\ a=175+21 \\\\ \boxed{a=196}$