题目内容
| 解方程 (1)4.5x+x=11 | (2)1.3x÷2=2.6 | (3)
|
(1)4.5x+x=11,
5.5x=11,
5.5x÷5.5=11÷5.5,
x=2;
(2)1.3x÷2=2.6,
1.3x÷2×2=2.6×2,
1.3x=5.2,
1.3x÷1.3=5.2÷1.3,
x=4;
(3)
x-
=
,
x-
+
=
+
,
x=
,
x×
=
×
,
x=
.
5.5x=11,
5.5x÷5.5=11÷5.5,
x=2;
(2)1.3x÷2=2.6,
1.3x÷2×2=2.6×2,
1.3x=5.2,
1.3x÷1.3=5.2÷1.3,
x=4;
(3)
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