A rectangle has a length that is 3 cm more than twice its width. If the perimeter of the rectangle is 42 cm, which equation could be used to find the width (w)?

2(w+2w+3)=42
2 )
w+2w+3=42
3 )
2(w+2w−3)=42
4 )
2w+2(2w+3) =42
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