题目内容
解方程.
6X-X=125
0.5X-2=24
X÷0.6=4.5.
6X-X=125
0.5X-2=24
X÷0.6=4.5.
(1)6X-X=125,
5X=125,
5X÷5=125÷5,
X=25;
(2)0.5X-2=24,
0.5X-2+2=24+2,
0.5X=26,
0.5X÷0.5=26÷0.5,
X=52;
(3)X÷0.6=4.5,
X÷0.6×0.6=4.5×0.6,
X=2.7.
5X=125,
5X÷5=125÷5,
X=25;
(2)0.5X-2=24,
0.5X-2+2=24+2,
0.5X=26,
0.5X÷0.5=26÷0.5,
X=52;
(3)X÷0.6=4.5,
X÷0.6×0.6=4.5×0.6,
X=2.7.
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