SOLUTION: A 68 foot pipe is cut into two pieces, one of the which is 12 ft less than the other. What is the length of the shorter piece?

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Question 520149: A 68 foot pipe is cut into two pieces, one of the which is 12 ft less than the other.
What is the length of the shorter piece?
Answer by Maths68(1474) About Me  (Show Source):
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A 68 foot pipe is cut into two pieces, one of the which is 12 ft less than the other.
What is the length of the shorter piece?
Let
One piece = x
Other piece = x-12
Sum of two pieces = Total length of entire piece
x+x-12=68
2x-12=68
2x=68+12
2x=80
x=80/2
x=40
One piece = x = 40 feet
Other piece = x-12 = 40-12 = 28 feet
Shorter piece = 28 feet