Question

-2,8х+4,5=-1,9х-13,5

Answer 1

-2,8+1,9=-13,5-4,5 -0,9x=-18 X=20

Answer 2

- 2,8х + 1,9х = - 13,5 - 4,5
- 0,9х = - 18
 0,9х = 18
     х = 20