Read the story. Marie and Plerre Curie were both winners of the Nobel Prize in physics. This prize is one of the highest any scientist can receive. Their
daughter, Irene, also received a Nobel Prize in chemistry. The Curies were a remarkable family. Pierre Curie was already a famous scientist when he
met Marle, who had fled from Poland. Together they discovered polonium and radium, two elements that are important in modern Industry, Pierre
Curie was killed in an accident, but Marle carried on scientific research until she died in 1934

1.3x - 2 - (3.3x + 5) = 2x + 1

1.3x - 2 - 3.3x - 5 = 2x + 1

-2x - 7 = 2x + 1

-7 = 4x + 1

-8 = 4x

x = -2

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answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: