数学计算题;(-6)-(+6)-(-7)=?-︱-2/3-(-3/2)︱-︱(-1/5)+(2/5)︱=?
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数学计算题;(-6)-(+6)-(-7)=?-︱-2/3-(-3/2)︱-︱(-1/5)+(2/5)︱=?
数学计算题;(-6)-(+6)-(-7)=?-︱-2/3-(-3/2)︱-︱(-1/5)+(2/5)︱=?
数学计算题;(-6)-(+6)-(-7)=?-︱-2/3-(-3/2)︱-︱(-1/5)+(2/5)︱=?
(-6)-(+6)-(-7)
=-12-(-7)
=-5
-|-2/3-(+2/3)|-|(-1/5)+(-2/5)|
=-|-2/3-2/3|-|-1/5-2/5|
=-|-4/3|-|-3/5|
=-4/3-3/5
=-11/15
(-6)-(+6)-(-7)=-6-6+7=-5
-︱-2/3-(-3/2)︱-︱(-1/5)+(2/5)︱
=-|-2/3+3/2|-|-1/5+2/5|
=-|5/6|-|1/5|
=-5/6-1/5
=-31/30