Question

1) 2x+9,8=13,6; 2) 10,36-3x=5,86; 3)
4,2x-6=3,66; 4) 19,5-0,3x=15,9; 5) (7-0,2x)×1,4=7,56; 6) (6,1x-13,2):1,7=3.

Answer 1

2х=13'6-9'8
2x=3'8
х=1'9
-3x=5'86-10'36
-3х=-5'5
х=3*5'5
х=-16'5

4'2х=3'66+6
4'2x=9'66
x=9'66:4'2
x=2'3