1/30-(-2/3+3/5)÷(-2)-(2/13-1/3-1/6)×7865%(y-1)=37%(y+1)-0.82
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![1/30-(-2/3+3/5)÷(-2)-(2/13-1/3-1/6)×7865%(y-1)=37%(y+1)-0.82](/uploads/image/z/697242-66-2.jpg?t=1%2F30-%EF%BC%88-2%2F3%2B3%2F5%EF%BC%89%C3%B7%EF%BC%88-2%EF%BC%89-%EF%BC%882%2F13-1%2F3-1%2F6%EF%BC%89%C3%977865%EF%BC%85%EF%BC%88y-1%EF%BC%89%3D37%EF%BC%85%EF%BC%88y%2B1%EF%BC%89-0.82)
1/30-(-2/3+3/5)÷(-2)-(2/13-1/3-1/6)×7865%(y-1)=37%(y+1)-0.82
1/30-(-2/3+3/5)÷(-2)
-(2/13-1/3-1/6)×78
65%(y-1)=37%(y+1)-0.82
1/30-(-2/3+3/5)÷(-2)-(2/13-1/3-1/6)×7865%(y-1)=37%(y+1)-0.82
1/30-(-2/3+3/5)÷(-2)
=1/30-(-1/15)*(-1/2)
=1/30-1/30
=0
-(2/13-1/3-1/6)×78
=-(2/13×78-1/3×78-1/6×78)
=-(12-26-13)
=27
65%(y-1)=37%(y+1)-0.82
0.65y-0.65=0.37y+0.37-0.82
0.65y-0.37y=0.65+0.37-0.82
0.28y=0.2
y=5/7
1、原式
=1/30-(-10/15+9/15)×(-1/2)
=1/30-(-1/15)×(-1/2)
=1/30-1/30
=0
2、原式
=-(2/13×78-1/3×78-1/6×78)
=-(2×6-26-13)
=-(12-26-13)
=-(-27)
=27
3、0.65y-0.65=0.37y+...
全部展开
1、原式
=1/30-(-10/15+9/15)×(-1/2)
=1/30-(-1/15)×(-1/2)
=1/30-1/30
=0
2、原式
=-(2/13×78-1/3×78-1/6×78)
=-(2×6-26-13)
=-(12-26-13)
=-(-27)
=27
3、0.65y-0.65=0.37y+0.37-0.82
0.65y-0.37y=0.65+0.37-0.82
0.28y=0.2
y=0.2/0.28
y=5/7
收起
1/30-(-2/3+3/5)÷(-2)
=1/30-(-1/15)*(-1/2)
=1/30-1/30
=0