"430 5" is not an equation and it does not have an unknown value. So there can be no equation which has the same unknown value.
unknown
You don't use unknown variables to solve an equation. The purpose of solving an equation is to find the value of the variable so that it's no longer unknown.
let the unknown no be x so, 178+x=891 transposing, x=891-178 x=713 unknown no is 713
Unknown
Very few people even knew about Terezin until the 1990's, why was Terezin's story kept a secret for so long?
Very few people even knew about Terezin until the 1990's, why was Terezin's story kept a secret for so long?
no
The Nazis chose Terezin because it was a small secluded area away from Germany.
55,000 people in terezin you can look it up at, I Never Saw a Butter Fly-webquest
Terezin once served as a military fortress. During World War II, however, Terezin was adapted by the Gestapo and transformed into a concentration camp and a ghetto for Jewish families. Over 30,000 people died in the Terezin concentration camp, even though it was not an extermination camp.
The cast of The Boys of Terezin - 2011 includes: Shahab John Sharify as Narrator
Children of Terezin - 2011 was released on: USA: 21 September 2011 (Los Angeles, California)
Diese Tage in Terezin - 1997 is rated/received certificates of: Germany:6 (bw)
Terezin (Theresienstadt) is about 60 km NW of Prague in the Czech Republic.
there were only 378 kids that survived the concentration camp
Terezin in the Czech Republic