massless scaffold is held up by a wire at each end. The scaffold is 12m long. A 300-N box sits 4.0 m from the?

left end. What is the Tension in EACH wire??can anyone help

And you asked this physics question in the math section of answers because? Let Tl and Tr be the tensions in the left and right wires. We are told the weight of the box is W and that the scaffold is weightless.