解一元一次式方程式

1.
x + 5 = 6
x + 5 - 5 = 6 - 5
x = 1


2.
x - 3 = 7
x - 3 + 3 = 7 + 3
x = 10


3.
x - 5 = -6
x - 5 + 5 = -6 + 5
x = -1


4.
x + 7 = 4
x + 7 - 7 = 4 - 7
x = -3


5.
x - 4 = -2
x - 4 + 4 = -2 + 4
x = 2


6.
x + 3 = -1
x + 3 - 3 = -1 - 3
x = -4


7.
3x = 2x + 5
3x - 2x = 2x + 5 - 2x
x = 5


8.
7x = 6x
7x - 6x = 6x - 6x
x = 0


9.
x + 5 = 5
x + 5 - 5 = 5 - 5
x = 0


10.
x - 5 = 5
x - 5 + 5 = 5 + 5
x = 10

1.x+5=6
x=6-5
x=1
Ans:1


2. x-3=7
x=7+3
x=10
Ans:10


3.x-5=-6
Ans:
4.x+7=4
x=4-7
x=-3
Ans:-3


5.x-4=-2
x=-2+4
x=2
Ans:2


6.x+3=-1
x=-1-3
x=-4
Ans:-4


7.3x=2x+5
3x-2x=5
x=5
Ans:5


8.7x=6x
7x-6x
1x=x
Ans:x


9.x+5=5
x=5-5
x=0
Ans:0


10.x-5=5
x=5+5
x=10
Ans:10



希望對你有幫助:)

2013-12-30 19:45:08 補充：
我沒看到第3題

3.x-5=-6
x=-6+5
x=-1
Ans:-1

2013-12-30 19:48:03 補充：
階級高的人不一定都是正確答案
希望你能慎重選擇


且 不要刪掉這個問題

知識都是得來不易的

1: x=6-5=1

2: x=7+3=10

3: x=-6+5=-1

4: x=4-7=-3

5: x=-2+4=2

6: x=-1-3=-4

7: 3x-2x=5
x=5

8: 7x-6x=0
x=0

9: x=5-5=0

10: x=5+5-10