Question

2,5•(-2х+7y-0,4z+0,2)​

Answer 1

-5x+17,5-1z+0,5
-5x-z=-18

Answer 2

Ответ:

$2.5( - 2x + 7y - 0.4z + 0.2) = - 5x + 17.5y - z + 0.5$