Find the coordinates of the point (x, y) where the two given lines intersect​

Given,

-4x+7y=1

4x+y=23

adding both equation,

8y= 24, y = 3

substituting y in eq 2nd,

4x+3=23

4x=20

x=5

the coordinates of the point (x,y) where the two given lines intersect is (5,3)

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event