1959+3910−5.221959−62750+5.22÷(1993×0.41995×0.5+1.61995)
1959+3910−5.221959−62750+5.22÷(1993×0.41995×0.5+1.61995)
−18÷(−3)
先简化,再求值:x−22x−6÷(−5x−3−x−3)
先化简再求值:4−xx−2÷(x+2−12x−2)
化简求值:(3x−1−x−1)÷x−2x
化简:(2mm+2−mm−2)÷mm
计算:18.25×1145−1714÷(1−5459)
(58−0.375+712)×24−12÷(325+0.6)
6.75−2.75÷[10%×(9.75−414)]
1994+1993×19951994×1995−1+1995+1994×19961995×1996−1+1996+199
先化简,再求值:(x−1x−x−2x+1)÷2x
阅读下面解题过程:计算:(−15)÷(13−32−3)×6