Anyone knows the answer or how to do this?

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e