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31-08-2015
Mathematics

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2=2 (lw+lh+wh) solve for w

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31-08-2015

solve for w.

2=2(lw+lh+wh)

Flip the equation.

2hl+2hw+2lw=2

Add -2hl to both sides.

2hl+2hw+2lw+−2hl=2+−2hl

2hw+2lw=−2hl+2

Factor out variable w.

w(2h+2l)=−2hl+2

Divide both sides by 2h+2l.

w(2h+2l) / 2h+2l=−2hl+2 / 2h+2l

w=−hl+1/h+l

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