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解两道因式方程~~要过程!1720000/X=700000/（X-1000）2s/(s-1000)=72/70
题目详情
解两道因式方程~~要过程!
1 720000/X=700000/（X-1000）
2 s/(s-1000)=72/70
1 720000/X=700000/（X-1000）
2 s/(s-1000)=72/70
▼优质解答
答案和解析
720000/X=700000/（X-1000）
72/x=70/(x-1000)
72(x-1000)=70x
72x-72000=70x
72x-70x=72000
2x=72000
x=36000
s/(s-1000)=72/70
70s=72(s-1000)
70s=72s-72000
72s-70s=72000
2s=72000
s=36000
72/x=70/(x-1000)
72(x-1000)=70x
72x-72000=70x
72x-70x=72000
2x=72000
x=36000
s/(s-1000)=72/70
70s=72(s-1000)
70s=72s-72000
72s-70s=72000
2s=72000
s=36000
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