一、解方程(详细点) (1)4.5×6+4x=41 (2)7x-3.4x=0.72 (3)2
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解决时间 2021-03-26 02:03
- 提问者网友:刺鸟
- 2021-03-25 04:00
一、解方程(详细点) (1)4.5×6+4x=41 (2)7x-3.4x=0.72 (3)2
最佳答案
- 五星知识达人网友:你哪知我潦倒为你
- 2021-03-25 04:06
追答
望采纳
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- 1楼网友:春色三分
- 2021-03-25 10:42
追答还满意么?!满意就请采纳吧!
- 2楼网友:鸠书
- 2021-03-25 09:58
- 3楼网友:平生事
- 2021-03-25 08:32
追答
- 4楼网友:詩光轨車
- 2021-03-25 07:26
(1)4.5×6+4x=41
27+4x=41 4x=14 x=3.5
(2)7x-3.4x=0.72
3.6x=0.72 x=0.02
(3)2x+1.5x=42
3.5x=42 x=12
(4)(x-4.5)×6=318
x-4.5=503 x=507.5
(5)27-17x=13.4
27=13.4+17x 13.6=17x 0.8=x
(6)(x+1.7)÷3=1.4 x+1.7=4.2 x=2.5
27+4x=41 4x=14 x=3.5
(2)7x-3.4x=0.72
3.6x=0.72 x=0.02
(3)2x+1.5x=42
3.5x=42 x=12
(4)(x-4.5)×6=318
x-4.5=503 x=507.5
(5)27-17x=13.4
27=13.4+17x 13.6=17x 0.8=x
(6)(x+1.7)÷3=1.4 x+1.7=4.2 x=2.5
- 5楼网友:煞尾
- 2021-03-25 06:38
1、解:4x=41 - 27
4x=14
x=14÷4
x=7/2
2、解:(7 - 3.4)x=0.72
3.6x=0.72
x=0.72÷3.6
x=0.2
3、解:(2 + 1.5)x=42
3.5x=42
x=42÷3.5
x=12
4、解:x - 4.5=318÷6
x=53 + 4.5
x=57.5
5、解:-17x=13.4 - 27
-17x=-13.6
x=-13.6÷(-17)
x=0.8
6、解:x + 1.7=1.4×3
x=4.2 - 1.7
x=2.5
4x=14
x=14÷4
x=7/2
2、解:(7 - 3.4)x=0.72
3.6x=0.72
x=0.72÷3.6
x=0.2
3、解:(2 + 1.5)x=42
3.5x=42
x=42÷3.5
x=12
4、解:x - 4.5=318÷6
x=53 + 4.5
x=57.5
5、解:-17x=13.4 - 27
-17x=-13.6
x=-13.6÷(-17)
x=0.8
6、解:x + 1.7=1.4×3
x=4.2 - 1.7
x=2.5
- 6楼网友:人间朝暮
- 2021-03-25 05:26
(1)4.5×6+4x=41
27+4x=41
4x=41-27
4x=14
x=14/4
x=3.5
(2)7x-3.4x=0.72
(7-3.4)x=0.72
3.6x=0.72
x=0.72/3.6
x=0.2
(3)2x+1.5x=42
(2+1.5)x=42
3.5x=42
x=42/3.5
x=12
(4)(x-4.5)×6=318
6x-4.5*6=318
6x-27=318
6x=318+27
6x=345
x=345/6
x=57.5
(5)27-17x=13.4
17x=27-13.4
17x=13.6
x=13.6/17
x=0.8
(6)(x+1.7)÷3=1.4
x+1.7=1.4*3
x+1.7=4.2
x=4.2-1.7
x=2.5
27+4x=41
4x=41-27
4x=14
x=14/4
x=3.5
(2)7x-3.4x=0.72
(7-3.4)x=0.72
3.6x=0.72
x=0.72/3.6
x=0.2
(3)2x+1.5x=42
(2+1.5)x=42
3.5x=42
x=42/3.5
x=12
(4)(x-4.5)×6=318
6x-4.5*6=318
6x-27=318
6x=318+27
6x=345
x=345/6
x=57.5
(5)27-17x=13.4
17x=27-13.4
17x=13.6
x=13.6/17
x=0.8
(6)(x+1.7)÷3=1.4
x+1.7=1.4*3
x+1.7=4.2
x=4.2-1.7
x=2.5
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