(x-35)-18=17
х-35 = 17+18
x -35 = 35
x = 35+35
<span>x= 70
</span><span> 93-х-56=8
-х=8+56-93;
х=93-56-8;
х=29</span>
1) 2884+1508=4392
2) 4392/122=36
3) 36-22=14
Х*20=40
х=40/20
х=2
80-х=10
х=80-10
х=70
60/х=10
х=60/10
х=6
M-0.67=0.0152÷0.02
m-0.67=0.76
m=0.76+0.67
m=1.43
См. рис.
BC = 2 часа, AC = BD. Значит, AB=CD.
AD = AB+BC+CD
AB+BC+CD = 8
AB+AB+2=8
2AB = 6
AB = CD = 3
Тогда AC = BD = 3+2 = 5 часов.