问题
解答题
解方程: X-
8X=4 X÷12.5=8 12.7+X=15.7. |
答案
X-
=5 6
,5 6
X-
+5 6
=5 6
+5 6
,5 6
x=
;5 3
8X=4;
8X÷8=4÷8,
X=0.5;
X÷12.5=8
X÷12.5×12.5=8×12.5,
X=100;
12.7+X=15.7,
12.7+X-12.7=15.7-12.7,
X=3.
解方程: X-
8X=4 X÷12.5=8 12.7+X=15.7. |
X-
=5 6
,5 6
X-
+5 6
=5 6
+5 6
,5 6
x=
;5 3
8X=4;
8X÷8=4÷8,
X=0.5;
X÷12.5=8
X÷12.5×12.5=8×12.5,
X=100;
12.7+X=15.7,
12.7+X-12.7=15.7-12.7,
X=3.