
解方程. 13x+59=56 5.5x-3.6
1个回答
展开全部
(1)
x+
=
,
x+
-
=
-
,
x=
,
x×3=
×3,
x=
,
(2)5.5x-3.6=18.4,
5.5x-3.6+3.6=18.4+3.6,
5.5x=22,
5.5x÷5.5=22÷5.5,
x=4,
(3)
-
=1.2,
x=1.2,
x×12=1.2×12,
x=14.4.
1 |
3 |
5 |
9 |
5 |
6 |
1 |
3 |
5 |
9 |
5 |
9 |
5 |
6 |
5 |
9 |
1 |
3 |
5 |
18 |
1 |
3 |
5 |
18 |
x=
5 |
6 |
(2)5.5x-3.6=18.4,
5.5x-3.6+3.6=18.4+3.6,
5.5x=22,
5.5x÷5.5=22÷5.5,
x=4,
(3)
x |
3 |
x |
4 |
1 |
12 |
1 |
12 |
x=14.4.
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