Question

Linear Equations Solve : 1) 3 (2x-1)=21 2) 3 (2x + 9) = 39 3) 2 (4x - 5) = 14 4) 2 ( 3 + 2x ) = 22 5) 4 ( 3x - 2) = 28 6) 2 ( 4 - 2x ) = 16 7) 4 ( x - 6 ) = 3 x - 1

Answer 1

Answer:

1) 3 (2x-1) = 21

6x - 3 =21

6x = 21 + 3

6x = 24

x = 24/6

x = 4

2) 3 (2x + 9) = 39

6x + 27 = 39

6x = 39 - 27

6x = 12

x = 12/6

x = 2

3) 2 (4x - 5) = 14

8x - 10 = 14

8x = 14 + 10

8x = 24

x = 24/8

x = 3

4) 2 (3 + 2x) = 22

6 + 4x = 22

4x = 22 - 6

4x = 16

x = 16/4

x = 4

5) 4 (3x - 2) = 28

12x - 8 = 28

12x = 28 + 8

12x = 36

x = 36/ 12

x = 3

6) 2 (4 - 2x) = 16

8 - 4x = 16

4x = 16 - 8

4x = 8

x = 8/4

x = 4

7) 4 (x - 6 ) = 3x - 1

4x - 24 = 3x - 1

4x - 3x = -1 + 24

x = 23

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