-30=-2(-n + 3)

Only number not variable

A80-foot piece of siding is cut into three pieces so that the second piece is four times four times as long as the first piece and the third piece is five times as long as the first piece. if x represents the length of the first piece, find the lengths of all three pieces.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Two consecutive negative integers have a product of 30. what are the integers?