What is your equation in x?
A 12" board is cut into 3 pieces so that the 2nd piece is twice as long as the first piece and the third piece is 3 times as long as the first piece. If x represents the length of the first piece, find the length of all 3 pieces
Since you know that sum of the lengths of all pieces is 12", and length of the second piece is 2x, and length of the third piece is 3x, x being the length of the first piece, you can write an equation , which means first piece + second piece + third piece is equal to total length (12"). Now you can try to solve this equation for x and you will get the length of the first piece and after that it will be easy to find the lengths of other pieces. I hope this helps.