Question

a)2(x-4)+2(9x-2)=2(9x-1)

b)14x-18-5+2x-9+19-23+2x+8-1x

Answer 1

a)2(x-4)+2(9x-2)=2(9x-1)

2x-8+18x-4=18x-2    \ -18x

2x-8+18x-4-18x=-2     \+8

2x+18x-4-18x=-2+8     \+4

2x+18x-18x=-2+8+4

2x=10                            \ :2

x=5

 

b)14x-18-5+2x-9+19-23+2x+8-1x

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Answer 2

a) 2x-8+18x-4 = 18x-2

20 x - 12 =18x-2

20x -18 x = -2 +12

2x = 10/: 2

x = 5

 

b) 14x-18-5+2x-9+19-23+2x+8-1x

14x+2x+2x-x= 18 +5 +9-19+23-8

17 x = 28/17

x = 1 i 11/17