0,3х=1
х= 10/3=3 целых 1/3
-16х=8
х=8:(-16)
х= -0,5 и -х = 0,5
х+3,2=8
х=4,8 и х= -4,8
3x+10x=9-16
13x=-7
x=-7/13
3*1-3*х+5*х+5*2=1-4х
3-3х+5х+10=1-4х
-3х+5х+4х=1-3-10
6х=-12
х=-12:6
х=-2
-20+8м+3м-12=12-6м-5м
-8м+3м +6м+5м = 20+12-12
22м=20
м=20/22 = 10/11