2x+0.4x=48(并检验)8x-x=14.7 35x+13x=9.6 5(x+3)=35x+3.7x+2=16.114x+3x-12x=15818-2.5x=13（写成检验过程）9.5x-5x=271.5x-6=3（写成检验过程）7x-0.6x=16

2x+0.4x=48(并检验)8x-x=14.7 35x+13x=9.6 5(x+3)=35x+3.7x+2=16.114x+3x-12x=15818-2.5x=13（写成检验过程）9.5x-5x=271.5x-6=3（写成检验过程）7x-0.6x=16
2x+0.4x=48(并检验)
8x-x=14.7
35x+13x=9.6
5(x+3)=35
x+3.7x+2=16.1
14x+3x-12x=158
18-2.5x=13（写成检验过程）
9.5x-5x=27
1.5x-6=3（写成检验过程）
7x-0.6x=16

2x+0.4x=48(并检验)8x-x=14.7 35x+13x=9.6 5(x+3)=35x+3.7x+2=16.114x+3x-12x=15818-2.5x=13（写成检验过程）9.5x-5x=271.5x-6=3（写成检验过程）7x-0.6x=16
2x+0.4x=48
2.4x=48
x=48/2.4
x=20

8x-x=14.7
7x=14.7
x=14.7/7
x=2.1

35x+13x=9.6
48x=9.6
x=0.5

5(x+3)=35
5x+15=35
5x=35-15
x=20/5
x=4

x+3.7x+2=16.1
4.7x+2=16.1
4.7x=16.1
x=3

14x+3x-12x=158
5x=158
x=31.6

18-2.5x=13
2.5x=18-13
x=5/2.5
x=2

9.5x-5x=27
4.5x=27
x=6

1.5x-6=3
1.5x=3+6
x=9/1.5
x=6

7x-0.6x=16
6.4x=16
x=2.5
写检验过程时把值带进去

20
2.1
0.5
4
3
31.6
2
6
6
2.5
检验过程把值带进去 两边相等就行了能具体点吗？额。。其实方法都差不多 举个例子 第一个 变成2.4X = 48.然后X = 48除以2.4.X就等于20了 都有x的项。就把x前面那个系数相加减。。我没学方程数，可是作业里有，我不会，我不懂，求。。具体点，让...

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20
2.1
0.5
4
3
31.6
2
6
6
2.5
检验过程把值带进去 两边相等就行了

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2x+0.4x=48 (2 + 0.4)x = 48 2.4x = 48 x = 20 带回原式得2*20 + 0.4*20 = 48 答案正确
8x-x=14.7 (8 - 1)x = 14.7 7x = 14.7 x = 2.1
35x+13x=9.6 (35 + 13) = 9.6 48x = 9.6 ...

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2x+0.4x=48 (2 + 0.4)x = 48 2.4x = 48 x = 20 带回原式得2*20 + 0.4*20 = 48 答案正确
8x-x=14.7 (8 - 1)x = 14.7 7x = 14.7 x = 2.1
35x+13x=9.6 (35 + 13) = 9.6 48x = 9.6 x = 0.2
5(x+3)=35 5x +5*3 = 35 5x = 35 - 5*3 5x = 0 x = 0
x+3.7x+2=16.1 (1 + 3.7)x + 2 = 16.1 4.7x = 16.1 - 2 4.7x = 14.1 x = 3
14x+3x-12x=158 (14 + 3 - 12)x = 158 5x = 158 x = 31.6
18-2.5x=13 -2.5x = 13 -18 -2.5x = -5 x = 2 带回原式得18 - 2.5*2 = 18 - 5 = 13答案正确
9.5x-5x=27 (9.5 - 5)x = 27 4.5x = 27 x = 6
1.5x-6=3 1.5x = 3 -(-6) 1.5x = 3 + 6 1.5x = 9 x = 6 带回原式得1.5*6 - 6 =9 - 6 = 3 答案正确
7x-0.6x=16 (7 - 0.6)x = 16 6.4x = 16 x = 2.5

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