Mathematics
Junior High
Solved

この方程式が解けないので回答待ってます

x f0+7+ 2000-x 100 C 30

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✨ Best Answer ✨

x/80+7+(2000-x)/100=30 両辺に800かけると
10x+5600+8(2000-x)=24000
2x+21600=24000
2x=2400
x=1200
となります

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