Răspuns:
280026-89275-441(745:5-10-10): 7
=280026-89275-441(149-10-10):7
=280026-89275-441(139-10):7
=280026-89275-441×129:7
=280026-89275-56889:7
=280026-89275-8127
=190751-8127
=182624
