Question

6) 2 (x + 8) = 3 (x + 9)

7) 2 (7 – x) = 3 (– 4 – 2x)

8) 5 (x – 3) = 4 (3 – 2x)

9) 4x + 2 (x – 5) = 32

10) 5 (x – 1) + 4x = 2x – 16


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Answer 1

6)

2(x + 8)= 3(x + 9)

2x + 16= 3x + 27

2x - 3x= 27 - 16

- 1x= 11 >> .(-1)

1x= - 11

x= - 11/1

x= - 11

7)

2(7 - x)= 3(- 4 - 2x)

14 - 2x= - 12 - 6x

- 2x + 6x= - 12 - 14

4x= - 26

x= - 26/4

x= - 13/2

8)

5(x - 3)= 4(3 - 2x)

5x - 15= 12 - 8x

5x + 8x= 12 + 15

13x= 27

x= 27/13

9)

4x + 2(x - 5)= 32

4x + 2x - 10= 32

4x + 2x= 32 + 10

6x= 42

x= 42/6

x= 7

10)

5(x - 1) + 4x= 2x - 16

5x - 5 + 4x= 2x - 16

5x + 4x - 2x= - 16 + 5

7x= - 11

x= - 11/7