1 ...г
3... б
4.....б
5.....д
X+8=8x-8
x-8x=-8-8
-7x=-16
x=-16/(-7)
x=2.2/7
(x-2)*6 (x+3)*5
-------- - ----------=0
5 6
6x-12-(5x+15)
---------------------=0
30
6x-12-5x-15
-----------------=0
30
x-27
--------=0
30
x-27=0
x=27
1² = 1*1 =1 .............
<span>(0,8x-3)/-3(=(0,6-8,4)/2
(0,8х-3)*2=(0,6-8,4)*(-3)
1,6х-6=(-7,8)*(-3)
1,6х-6=23,4
1,6х=23,4+6
1,6х=29,4
х=18,375</span>