Răspuns :
3.
a-1189+4475=10000
a-1189=10000-4475; a-1189=5525 => a=5525+1189; a=6714
4.
3625-1448=2177km; 3625+2177=5802km au parcurs taxiurile
a-1189+4475=10000
a-1189=10000-4475; a-1189=5525 => a=5525+1189; a=6714
4.
3625-1448=2177km; 3625+2177=5802km au parcurs taxiurile