Question

rozwiąż równania (jest ich 4)

w linku

http://tinypic.pl/na9pafch2z6f

Answer 1

a)

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

6x-4-16x=3x

-10x-4=3x

-10x-3x=4

-13x=4

x=-4/13

 

b)

2(2x-3)-3(x+2)=6x-5

4x-6-3x-6=6x-5

x-12=6x-5

x-6x=-5+12

-5x=7

x=-7/5

  

c)

2(-x-2)-3(x+2)=6x-5

-2x-4-3x-6=6x-5

-5x-10=6x-5

-5x-6x=-5+10

-11x=5

x=-5/11 

 

e)

6(4x-3)=6(2x-1)-(x-3)

24x-18=12x-6-x+3

24x-18=11x-3

24x-11x=-3+18

13x=15

x=15/13

x=1 2/13

 

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