4x-(x-10.2)\8乘20=34 x=?
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4x-(x-10.2)\8乘20=34x=?4x-(x-10.2)\8乘20=34x=?4x-(x-10.2)\8乘20=34x=?4x-(x-10.2)\8乘20=344x-(x-10.2)*2.5
4x-(x-10.2)\8乘20=34 x=?
4x-(x-10.2)\8乘20=34 x=?
4x-(x-10.2)\8乘20=34 x=?
4x-(x-10.2)\8乘20=34
4x-(x-10.2)*2.5=34
4x-2.5x+25.5=34
1.5x=8.5
x=17/3