Triangle cat is translated using the rule (xy)+(x-3y+4) to create triangle catif a line segment is drawn from point to point
drawn?

How do you use the elimination method for this question? explain, because i really want to understand!

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

How is this equation completed? i cannot find any examples in the book.