x+23=45+56
12+34+56+78+56=45+x-23=1234-x+56
256, 23 + 12, 56 =
56, 23 + 12, 45 =
89, 67 - 23, 45 =
1, 23 + 34, 67
19, 56 + 45, 65 =
Tính nhanh: 1 2 + − 1 2 + − 2 3 + 2 3 + 3 4 + − 3 4 + − 4 5 + 4 5 + 5 6 + − 5 6
1 2 + − 1 2 + − 2 3 + 2 3 + 3 4 + − 3 4 + − 4 5 + 4 5 + 5 6 + − 5 6 = 0
1 2 + − 1 2 + − 2 3 + 2 3 + 3 4 + − 3 4 + − 4 5 + 4 5 + 5 6 + − 5 6 = 0
Đây nha
x.2=45-13
x+23=56
x-23=78
AI tick mình mình tick lại
x . 2 = 45 - 13
x . 2 = 32
=> x = 16.
x + 23 = 56
=> x = 33.
x - 23 = 78
=> x = 55.
x.2=45-13
x.2=32
x=32:2
x=16
x+23=56
x=56-23
x=33
x-23=78
x=78+23
x=101
bn nào k mình tji mình k lại
Tính nhanh
a) 5 13 + − 5 7 + − 20 41 + 8 13 + − 21 41
b) 1 28 + − 1 14 + 3 28 + − 1 7 + 3 14
c) 1 2 + − 2 3 + 3 4 + − 4 5 + 5 6 + − 5 6 + 4 5 + − 3 4 + 2 3 + − 1 2
a) 5 13 + − 5 7 + − 20 41 + 8 13 + − 21 41 = 5 13 + 8 13 + − 20 41 + − 21 41 + − 5 7 = − 5 7
b) 1 28 + − 1 14 + 3 28 + − 1 7 + 3 14 = 1 28 + 3 28 + − 1 14 + 3 14 + − 1 7 = 1 7
c) 1 2 + − 2 3 + 3 4 + − 4 5 + 5 6 + − 5 6 + 4 5 + − 3 4 + 2 3 + − 1 2 = 1 2 + − 1 2 + 3 4 + − 3 4 + − 4 5 + 4 5 + 5 6 + − 5 6 = 0
45 + 23 - 54 x 56 : 34 =?
23 + 45 = ?
23 + 56 = ?
23 + 45 = 6 8
23 + 5 6 = 79
Ủng hộ nha !
Điền dấu >, <, = vào chỗ chấm
38 … 83
45 + 23 … 45 – 24
12 + 37 … 37 + 12
56 – 0 … 56 + 0
Lời giải chi tiết:
38 < 83
45 + 23 > 45 – 24
12 + 37 = 37 + 12
56 – 0 = 56 + 0
38 < 83
45 + 23 > 45 -24
12 +37 = 37+12
56-0=56+0
a, 3.(37 - \(x\)) - 56 = 1
3.(37 - \(x\)) = 1 + 56
3.(37 - \(x\)) = 57
37 - \(x\) = 57 : 3
37 - \(x\) = 19
\(x\) = 37 - 19
\(x\) = 18
b, 95 - (2\(x\) - 1).4 = 14
(2\(x\) - 1).4 = 95 - 14
(2\(x\) - 1).4 = 81
2\(x\) - 1 = 81 : 4
2\(x\) = \(\dfrac{81}{4}\) - 1
2\(x\) = \(\dfrac{85}{4}\)
\(x\) = \(\dfrac{85}{4}\) : 2
\(x\) = \(\dfrac{85}{8}\)
c,
-45 + (\(x\) - 15) = 23
- 45 + \(x\) - 15 = 23
- (45 + 15) + \(x\) = 23
- 60 + \(x\) = 23
\(x\) = 23 + 60
\(x\) = 83