<PRE><B>Question 124095</B>
The perimeter of a rectangle is 2x(Length + Width).  Let W be the width.  Then the length is W+7.  The resultant equation is:

56=2*((W+7)+W)

Divide both sides by 2;

28=W+7+W

Subtract 7 from both sides:

21 = 2*W

Divide by 2

10.5=W

Check:  2*((10.5+7)+10.5)=2*(17.5+10.5)=2*(28)=56.

Solution checks.

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