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数学
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解方程.
5.34+X=26.7
X-24.5=6.48
X+2X=45
X÷0.6=4.5.
人气:164 ℃ 时间:2020-04-08 20:47:44
解答
(1)5.34+X=26.7
5.34+X-5.34=26.7-5.34
X=21.36;
(2)X-24.5=6.48
X-24.5+24.5=6.48+24.5
X=30.98;
(3)X+2X=45
3X=45
3X÷3=45÷3
X=15;
(4)X÷0.6=4.5
X÷0.6×0.6=4.5×0.6
X=2.7.
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