width ---- x
length ----3x-4
perimeter = 2widths + 2 lengths
56 = 2x + 2(3x-4)
carry on
The length of a rectangular piece of steel in a bridge is 4
meters less than triple
the width. The perimeter of the piece of steel is 56
meters. Find the length of the piece of steel. Find the width of the piece of steel.
1 answer