Question

15. -13x + 6 + 4X - 1)=3- X- 4) 16. 12x - 12(x - 4) +3(2>x - 6) -x= OP 17 5x - 6(x - 4) 2(x -+ 1) 5 = O 18. 2(2x - 4) +3(x -3)} = 1 + x 19. 1Ox - {4x - (5-x)}+3= X -16 20. 3x - 6 + 4(x -2) + 5=-(x - 4)+ 23​

Answer 1

-13x + 6 + 4X - 1 = 3 - X - 4  

-9x + 5 = = - 1 - x

5 + 1 = 9x -x

6 = 8x

6/8  = x

2/4 =  x

12x - 12(x - 4) +3(2x - 6) -x = O

12x - 12x - 48 + 6x - 18 - x = 0

5x - 66 = 0

5x = 66

x = 66/5

5x - 6(x - 4) - 2(x + 1)  + 5 = 0

5x - 6x + 24 - 2x - 2 + 5 = 0

-3x + 27 = 0

27 = -3x

27/3 = x

9 =  x

- { x - 2(2x - 4) +3(x -3)} = 1 + x

- { x - 4x + 8 + 3x - 9} = 1 + x

- { -3x - 1 } = 1 + x

 + 3x + 1  = 1 + x

3x - x = 1 - 1

2x  = 0

x  = 0/2

x = 0

10x - {4x - (5-x)} + 3 = x - 16

10x - {4x - 5 + x} + 3 = x - 16

10x - {5x - 5} + 3 = x - 16

10x - 5x + 5 + 3 = x - 16

5x + 8 = x - 16

5x - x = -16 - 8

4x = -24

x = -24/4

x = - 6

 Eternamente

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