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二元一次方程组应用题(要有过程的)

2025-04-08 02:19:13

推荐回答（3个）

回答（1）：

设3x米布料做上衣,3y米布料做裤子
则3x+3y=6000
2*3x=3*3y

x+y=2000
2x=3y

x=1200,y=800

3x=3600,3y=2400

3600米布料做上衣,2400米布料做裤子
共能生产2400/3*3=2400套

回答（2）：

http://wenku.baidu.com/link?url=Cvh0OPDFyY2Z9HB4rh60T0S7zU8IQyqcTsoR3n9UY5Sad0o8XYv78cX9bD_B_ywYJBKqUxaJyQPjpebVKLP_d1TIqYNfZnDD9O6KSODNoxG

回答（3）：

用一元一次
解:设用x米布做上衣
x/3*2=(6000-x)/3*3
x/3*2=6000-x
x/3*5=6000
x=3600

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