_717|3
6 _____
_11 239
9
27
_27
0
<span>2,5,11,23,47,95,191,383
</span>
54-0=54>48
54-1=53>48
54-2=52>48
54-3=51>48
54-4=50>48
54-5=49>48
Ответ:
1) (64/х + 138) - 50 = 90
64/х + 138 = 90 + 50
64/х + 138 = 140
64/х = 140 - 138
64/х = 2
х = 64/2
х = 32
2) 925 - (80/х - 15) = 900
80/х - 15 = 925 - 900
80/х - 15 = 25
80/х = 25 + 15
80/х = 40
х = 80/40
х = 2
3) (95 - 45/х) * 9 = 810
95 - 45/х = 810/9
95 - 45/х = 90
45/х = 95 - 90
45/х = 5
х = 45/5
х = 5
4) 6 * (20/х - 15) = 30
20/х - 15 = 30/6
20/х - 15 = 5
20/х = 15 + 5
20/х = 20
х = 20/20
х = 1
5) (3х - 30)/2 = 68 - 8
(3х - 30)/2 = 60
3х - 30 = 60 * 2
3х - 30 = 120
3х = 120 + 30
3х = 150
х = 150/3
х = 50
6) 720/(4х - 46) = 150 * 3 - 90
720/(4х - 46) = 360
4х - 46 = 720/360
4х - 46 = 2
4х = 46 + 2
4х = 48
х = 48/4
х = 12
1)3y-1.8-5.2y-3,4=-5,8
-2,2y=-5,8+3,4+1,8
2,2y=5,8-3,4-1,8
2,2y=0,6
y=0,6/2,2
y=3/11
2)1-0,5x+15,8=12,8-0,7x
-05x+0,7x=12,8-1-15,8
0,2x=2
x=0.1
1) (3,2у-1,8)-(5,2у+3,4)=-5,8 2) 1-(0,5х-15,8)=12,8-0,7х помогите решить