1/2{1/3[1/20x-1/2-6]+x}=1
1/6(1/20x-13/2)+1/6x=1
x/120-13/12+x/6=1
21x/120=25/12
21x/10=25
21x=250
x=250/21
1/2{1/3[1/20x-1/2-6]+x}=1怎么解?
1/2{1/3[1/20x-1/2-6]+x}=1怎么解?
數(shù)學(xué)人氣:521 ℃時(shí)間:2020-06-26 12:28:13
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