5x+8х -6= 59
13х=59+6
13х=65
х=65/13
х=5
9х-6х+3=48
3х=48-3
3х=45
х=45/3
х=15
5х+2х-6=50
7х=50+6
7х=56
х=56/7
х=8
10х-6х+3=48
4х=48-3
4х=45
х=45/4
х=11,25
5x+8x-6x=56
7х=56
х=56/7
х=8
9x-6x+3x=48
6х=48
х=48/6
х=8
5х-6х-2=31
-х=31+2
-х=33
х=-33
9х-6х+5=77
3х=77-5
3х=72
х=72/3
х=24