Question

решите уравнения -2x+8x=-12

5x-3x=15-17

3x-5x= -21+33

-7x-9x=-40+8 

Answer 1

-2x+8x=-12; 6x=-12; x=-2

5x-3x=15-17; 2x=-2; x=-1

3x-5x= -21+33; -2x=12; x=-6

-7x-9x=-40+8; -16x=-32; x=2

 

 

 

 

 

 

Answer 2

1)6х=-12          2)2х=-2           3)-2х=12           4)-16х=32

    х=-2             х=-1                    х=-6                х=-2