T started when Francisco Madero called for an overthrow to Porfirio Diaz after a corrupt election. It lasted for more than a decade, killing nearly a million people--however, it also created the modern Mexican state, gave the country its modern constitution (in 1917) and eventually leading to the creation of its ruling party, the PRI. Basically, the Revolution transformed Mexico from a country dominated by rural aristocrats to one dominated by an urban elite.
Y= -3/7 - 1/7
Subtract the numerators only (top #)
Y= (-3-1)/7
Y= (-3+ -1)/7
Y= -4/7
Hope this helps! :)
People would basically take babies from their mother who was not married and give them up for adoption without any say in the mother