Question

The length of a rectangular field is 24 meters. This is 3 meters less than twice the width.find the the width

Answer 1

 So, if L = length, and W = width, and we know what the length is, than we know that L = 24. Now here is the equation I've used:  2w=L+3 .
So solve this like so:

2w=24+3 
2w=27 
w=13.5
So the width is 13.5.

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