Täht avaldises
4 · a + 18 = 46
a =
80 – k · 7 = 31
k =
27 : b + 44 = 53
b =
60 – 90 : m = 51
m =
37 – 7 · c = 23
c =
n · 9 + 19 = 100
n =
26 + a = 50
a =
29 + b = 43
b =
46 + x = 68
x =
y – 21 = 42
y =
63 + c = 84
c =
82 – k = 41
k =
34 + x = 79
x =
y – 40 = 41
y =
65 – n = 43
n =
m – 16 = 40
m =
x + 62 = 97
x =
m + 37 = 77
m =
57 – z = 17
z =
x + 13 = 65
x =
y – 19 = 10
y =
25 + m = 75
m =
42 + x = 68
x =
34 + x = 89
x =
x – 52 = 16
x =
y – 19 = 18
y =
47 – x = 23
x =
x – 18 = 52
x =
x – 56 = 35
x =
y – 21 = 42
y =
26 + x = 50
x =
43 – x = 29
x =
63 + x = 84
x =
y – 40 = 42
y =
x + 45 = 77
x =
62 – x = 47
x =
x – 13 = 65
x =
m + 27 = 80
m =
4 · a = 2 · 6
a =
6 · n = 2 · 9
n =
b · 4 = 8 + 8
b =
x · 8 = 4 · 10
x =
3 · 18 = 30 + x
x =
0 : 4 + 4 = 2 · a
a =
16 – 0 = 32 : b
b =
4 · 15 = 600 : c
c =
7 · 6 = x – 6
x =
4 · 0 = y – 1
y =
3 · 5 = x · 3
x =
9 · 2 = y · 9
y =
x – 14 = 58
x =
61 + x = 72
x =
48 – x = 24
x =
x + 44 = 99
x =
7 · 0 + 6 = x + 1
x =
0 : 4 + 18 = 2 · y
y =
56 – n = 56 – 11
n =
0 + 122 – x = 22
x =
6 · a = 54
a =
18 : k = 3
k =
1 = 28 : x
x =
c · 7 = 56
c =
6 · 6 + x = 40
x =
3 · 5 + x = 15
x =
8 · 6 + x = 70
x =
7 · 9 – x = 59
x =
48 : 6 + y = 20
y =
81 : 9 + y = 19
y =
50 : 5 – y = 10
y =
49 : 7 + y = 99
y =
2 · 23 + z = 2 · 34
z =
4 + 39 – z = 48 : 6
z =
z – 44 : 11 = 88 + 1
z =
23 + k : 2 = 3 · 101
k =
24 · x = x | Võrdus on tõene, kui x = . |
x · 0 = 0 | Võrdus . |
0 · x = 5 | Võrdus . |
x + x = x | Võrdus on tõene, kui x = . |
x · x = x | Võrdus on tõene, kui x = või kui x = . |
x − x = x | Võrdus on tõene, kui x = . |
100 · x = 100 | Võrdus on tõene, kui x = . |
x · 1 = x : 1 | Võrdus . |
7 − x = x + 5 | Võrdus on tõene, kui x = . |
x + x = x + 5 | Võrdus on tõene, kui x = . |
3 · x = x + 6 | Võrdus on tõene, kui x = . |
3 − x = x − 3 | Võrdus on tõene, kui x = . |
5 · 5 + x = 35
x =
6 · 6 + a = 50
a =
5 · 8 + b = 45
b =
9 · 8 – c = 45
c =
70 : 7 + n = 10
n =
81 : 9 + d = 19
d =
100 : 10 – y = 3
y =
56 : 8 – m = 1
m =
4 · 0 + 20 = 20 · x
x =
0 : 8 + 18 = y · 3
y =
50 : 1 + 1 = k · 51
k =
27 + 27 · 1 = z · 9
z =
4 · x = 64
x =
x : 7 = 12
x =
12 · (x : 3) = 60
x =
(54 : x) · 5 = 90
x =
70 – 9 · x = 70
x =
x + (80 + 60) = 320
x =
38 · x + 42 = 80
x =
x · 18 + 25 = 43
x =
540 : x + 37 = 57
x =
(160 – x) : 8 = 20
x =
(x + 39) – 45 = 18
x =
52 – (x – 12) = 35
x =
24 · x + 180 = 276
x =
560 : (x – 9) = 56
x =
(71 – x) + 32 = 67
x =
x : 4 + 150 = 270
x =
(410 – x) · 3 = 84
x =
(x – 420) : 7 = 60
x =
24 : c > 3 | ||
24 – y < 18 | ||
12 + z > 17 |
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