Question

Solve the following equations:
(i) x + 2 = 7
(ii) 3x - 1 = 23
(iii) 5x + 7 = 2(x + 2)
(iv) 5x - 1 = 44​

Answer 1

Answer:

(i) x + 2 = 7

x= 7-2

x = 5

(ii) 3x - 1 = 23

3x= 23+1

3x= 22

x= 24/ 3

x= 8

(iii) 5x + 7 = 2(x + 2)

5x + 7 = 2x+ 4

5x -2x = 4-7

3x = 3

x= 3/3

x= 1

(iv) 5x - 1 = 44

5x= 44+1

5x= 45

x= 45/5

x= 9

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Answer 2

Answer:

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

1. 3x-1=23
2. 3x=23+1
3. 3x=24
4. x=8

1. 5x+7=2(x+2)
2. 5x+7=2x+4
3. 5x-2x=4-7
4. 3x=-3
5. x= -1

1. 5x-1=44
2. 5x=45
3. x=9

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