6.75—2.75/[10%x(9.75—4+1/4)]
6.75—2.75/[10%x(9.75—4+1/4)]
簡便的
簡便的
數(shù)學(xué)人氣：669 ℃時(shí)間：2020-06-04 18:38:49
優(yōu)質(zhì)解答
6.75-2.75/[10%*(9.75-4+1/4)]=6.75-2.75/[0.1*(9+3/4-4+1/4]=6.75-2.75/[0.1*6]=(6+3/4)-(2+3/4)*5/3=(6+3/4)-(2*5/3+3/4*5/3)=27/4-10/3-5/4=27/4-5/4-10/3=11/2-10/3=13/6
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