-4/3x(0.5-2/3)÷10/9
2个回答
-4/3x(0.5-2/3)÷10/9
=(-4/3)×((-1/6)×9/10
=(2/9)×(9/10)
=1/5
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(带☆的验算) X÷0.5-10+2=0 ☆4(0.9+X)=5.2X (9x+59-5x)÷3=29 6.4-2(X+
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