问题
解答题
解方程:
|
答案
X-3 4
+0.2=4 5
,1 2
X-(0.8-0.2)=0.5,3 4
0.75X-0.6=0.5,
0.75X-0.6+0.6=0.5+0.6,
0.75X=1.1,
0.75X÷0.75=1.1÷0.75,
X=1
.7 15
解方程:
|
X-3 4
+0.2=4 5
,1 2
X-(0.8-0.2)=0.5,3 4
0.75X-0.6=0.5,
0.75X-0.6+0.6=0.5+0.6,
0.75X=1.1,
0.75X÷0.75=1.1÷0.75,
X=1
.7 15