问题
解答题
求未知数X.
X×26=22.1
X÷0.46=23
5.02-X=0.57.
答案
(1)X×26=22.1,
X×26÷26=22.1÷26,
X=0.85;
(2)X÷0.46=23,
X÷0.46×0.46=23×0.46,
X=10.58;
(3)5.02-X=0.57,
5.02-X+X=0.57+X,
0.57+X=5.02,
0.57-0.57+X=5.02-0.57,
X=4.45.