Question

(4,1x+2,5)-(2,3x+3,9)=1,6x

Answer 1

(4,1x+2,5)-(2,3x+3,9)=1,6x
4,1x+2,5-2,3x-3,9=1,6x
1,8x-1,4=1,6x
1,8x-1,6x=1,4
0,2x=1,4
x=1,4:0,2
x=7

Answer 2

4,1х+2,5-2,3х-3,9=1,6х
1,8х-1,4=1,6х
0,2х=1,4
х=1,4/0,2
х=7