Question

WAŻNE !!!!!

5x-6=8x+2

-3(-2x+1)=4(-3x+5)

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

Proszę rozpisać !!!

Answer 1

5x - 6 = 8x + 2 / - 8 x

- 3 x - 6 = 2 / + 6

- 3 x = 8 / : - 3

x = - 2,(6)

 

-3 ( - 2 x + 1 ) = 4 ( - 3 x + 5 )

6 x - 3 = - 12 x + 20 / + 12 x

18 x - 3 = 20 / + 3

18 x = 23

x = 1, 2(7)

 

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

- 15 x - 10 = 3x + 2 / - 3 x

- 18 x - 10 = 2 / + 10

- 18 x = 12 / : - 18

x= 0, 6 (7 )