tìm x 17x+4x=86:86+(2016)0
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a)
12 × 4 = 4 × 12
106 × 3 = 3 × 106
(17 × 5) × 2 = 17 × (5 × 2)
86 × 2 × 5 = 86 × (2 × 5)
b)
7 × 1 = 7
432 × 1 = 432
519 × 0 = 0
1 × 0 = 0
2 × 0 = 0
3 456 × 1 = 3 456
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17x - 4x = 8^2 + 1
(17 - 4 )x = 64 + 1
13x = 65
x = 65 : 13
x = 5
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17x - 4x = 88:86+(2016)0
<=> 82 + 1 = 13x
<=> 65 = 13x
<=> x = 5
\(17x-4x=8^8:8^6+\left(2016\right)^0\)
\(\Rightarrow13x=8^2+1\)
\(\Rightarrow13x=65\)
\(\Rightarrow x=5\)
Vậy \(x=5\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: 86-x>86-4
=>-x>-4
hay x<4
b: x+28<28+3
=>x+28<31
hay x<3
![](https://rs.olm.vn/images/avt/0.png?1311)
17x – 4x = 88: 86 + (2016)0 13x = 82 + 1 = 64 + 1 = 65 x = 65:13 = 5 x = 5 |
17x – 4x = 88: 86 + (2016)0 13x = 82 + 1 = 64 + 1 = 65 x = 65:13 = 5 x = 5 |
![](https://rs.olm.vn/images/avt/0.png?1311)
\(4x+26=86.\Leftrightarrow4x=60.\Leftrightarrow x=15.\)
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Bài làm
17x - 4x = 88 : 86 + ( 2016 )0
17x - 4x = 82 + 1
17x - 4x = 64 + 1
17x - 4x = 65
x( 17 - 4 ) = 65
x . 13 = 65
x = 65 : 13
x = 5
Vậy x = 5
# Học tốt #
17x-4x=88:86+(2016)0
13x=82+1
13x=64+1
13x=65
x=65:13
x=5
vậy x=5
![](https://rs.olm.vn/images/avt/0.png?1311)
(x - 78) . 86 = 0
x - 78 = 0 : 86 = 0
x = 0 + 78 = 78
Tick nha.
17x + 4x = 86 : 86 + 20160
21x = 1+ 1
21x = 2
x = 2 : 21
x = \(\frac{2}{21}\)
TL : 17x\(\frac{2}{21}\)+ 4 x \(\frac{2}{21}\)= 86: 86 + (2016)0