题目内容
求未知数x.
:x=
:12
2x-3.2-1.8=10.
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2x-3.2-1.8=10.
解;(1)
:x=
:12,
x=
×12,
x÷
=9÷
,
x=27;
(2)2x-3.2-1.8=10,
2x-5+5=10+5,
2x÷2=15÷2,
x=7.5.
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| 4 |
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| 1 |
| 3 |
x=27;
(2)2x-3.2-1.8=10,
2x-5+5=10+5,
2x÷2=15÷2,
x=7.5.
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