What was life like for immigrants to your country in the late 1800’s?

Well the immagrints in my country were african slaves who were kidnapled from their home country of africa, transported over the course of aboit 8 weeks by sea with poor living conditions. No food or any hygenic lrecautiins and thwn forced to work in horibal conditions with being beat, killed, and no respect given. They were to work till the poimt of death in most cases. This mostly occured in the south where the heat was emmense.

what are the options so i can answer it

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69