Ok so you know your brackets have to have (2x ) and (5x) or (10x ) and (x ) then you split the factors of 25 until you get an answer that will lead to 55 with your bracket starters
No, the graphs of the lines are not parallel because if you simplify 27x-3y=-81, you get y=9x+27, and in order to have the lines parallel, both equations must have the same "m" in y=mx+b. 6 and 9 do not equal, so no they are not parallel.
