题目内容
求未知数x
| 1.5x=3.75 | 2x-0.8=3.26 | 4x-2x=5.2. |
(1)1.5x=3.75,
1.5x÷1.5=3.75÷1.5,
x=2.5;
(2)2x-0.8=3.26,
2x-0.8+0.8=3.26+0.8,
2x=4.06,
2x÷2=4.06÷2,
x=2.03;
(3)4x-2x=5.2,
2x=5.2,
2x÷2=5.2÷2,
x=2.6.
1.5x÷1.5=3.75÷1.5,
x=2.5;
(2)2x-0.8=3.26,
2x-0.8+0.8=3.26+0.8,
2x=4.06,
2x÷2=4.06÷2,
x=2.03;
(3)4x-2x=5.2,
2x=5.2,
2x÷2=5.2÷2,
x=2.6.
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