# The length of a rectangle is 2 centimeters less than twice the width. If the area is 84 square centimeters how do you find the dimensions of the rectangle?

##### 1 Answer

width = 7 cm

length = 12 cm

#### Explanation:

It is often helpful to draw a quick sketch.

Let length be

Let width be

Area

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Subtract 84 from both sides

I take one look at this and think: 'can not spot how to factorise so use the formula.'

Compare to

So for our equation we have:

To have

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