1)7.2+1.6х=1-1.5х
1.6х+1.5х=1-7.2
3.1х=-6.2
х=6.2 :3.1
х = 2
2)0.5х+1.5=8-0.8х
0.5х+0.8х=8-1.5
1.3х=6.5
х= 6.5:1.3
х=65:13
х=5
7.2+106x=1-1.5x
1,6x+1,5x=1-7,2
3,1x=-6,2
x=-6,2:(-3,1)
x=2
1)7.2+1.6х=1-1.5х
1.6х+1.5х=1-7.2
3.1х=-6.2
х=6.2 :3.1
х = 2
2)0.5х+1.5=8-0.8х
0.5х+0.8х=8-1.5
1.3х=6.5
х= 6.5:1.3
х=65:13
х=5
7.2+106x=1-1.5x
1,6x+1,5x=1-7,2
3,1x=-6,2
x=-6,2:(-3,1)
x=2