Advanced/Enrichment Questions
Solve. Show your work.
expression: 3(x - 2) +9(x + 1) + 5(1 + 2x) + 2(3x - 4).

The answer is 28x also Cymath is really good for these type of problems

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

Answer is either b or c