長+寬=336÷2=168
長-寬=14
所以
寬=（168-14）÷2=154÷2=77厘米Demand p = 94 − 0.06x Supply p = 20 + 0.8x采納后重新求助，而且寫清楚。
一道英語數(shù)學(xué)題求解!～急著!
一道英語數(shù)學(xué)題求解!～急著!
Find the width of a rectangle if its perimeter is 336 centimeters and its width is 14 centime- ters less than its length
Find the width of a rectangle if its perimeter is 336 centimeters and its width is 14 centime- ters less than its length
英語人氣：309 ℃時間：2020-03-22 09:46:00
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