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(-2)2 (-1-3)➗(2/3)-丨-1/16丨x(-24)

(1/8-5/12)x24-(-3-3)^2➗(-6➗3)^2=1/8x24-5/12x24-(-6)^2x(-18)^2=3-10-36x(-324)=-7+11664=11657

36X(1/6X1/6)=36X1/36=1

(3.6+1.2)x13.5➗2 =4.8×13.5÷2 =64.8÷2 =32.4

第一种乙:5➗(3+5+7)=5/15=1/3 第二种乙:2➗(1+2+3)=2/6=1/3 所以都一样

6➗2/3-6➗2/3=0

x-8.71➗1.3+5x=2.6 x-6.7+5x=2.6 x+5x=6.7+2.6 6x=9.3 x=1.55 , 5(6-x)-6.8=1.5x6.6 30-5x-6.8=9.9 5x=23.2-9.9 5x=13.3 x=2.66

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