Question

0,1x+9=0,2x-4
помогите!

Answer 1

0,2х-0,1х=9+4

0,1х=13

х=130

Answer 2

0.1x + 9 - 0.2x + 4 = 0

-0.1x + 13 = 0

-0.1x = - 13

0.1x = 13

x = 130

Удачи))