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OpenStudy (anonymous):
Jon's new mini computer monitor has a 20 cm by 24 cm LCD screen with a plastic trim border. The total area of the monitor and border is 672 cm2. How wide is the trim around the monitor?
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OpenStudy (anonymous):
treat the addition of the trim as a variable, such that the 24 + x and 20 + x are the new length and width.
OpenStudy (anonymous):
does that help?
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