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( 6x - 39 ) : 3 = 201
6x - 39 = 603
6x = 642
x = 107
23 + 3x = 56 : 53
23 + 3x = 125
2x = 102
x = 51
a. (6x-39):3=201 \(b,23+3x=5^6:5^3\)
6x-39=201.3 \(23+3x=5^3\)
6x-39=603 \(23+3x=125\)
6x=603+39 \(3x=125-23\)
6x=642 \(3x=102\)
x=642:6 \(x=102:3\)
x=107 \(x=34\)
đúng nha
thanks bn nhìu
(6x-39):3=201
6x-39=201.3
6x-39=603
6x=603+39
6x=642
x=107
23+5x=5^3
23+5x=125
5x=125-23
5x=102
x=102:5
x=20,4
a, \(\left(6x-39\right):3=201\)
\(\Rightarrow\) \(6x-39=603\)
\(\Rightarrow\) \(6x=642\)
\(\Rightarrow\) \(x=107\)
b, \(23+3x=5^6:5^3\)
\(\Rightarrow\) \(23+3x=5^3\)
\(\Rightarrow\) \(23+3x=125\)
\(\Rightarrow\) \(3x=102\)
\(\Rightarrow\) \(x=34\)
\(a,\left(6x-39\right):3=201\)
\(\Leftrightarrow6x-39=603\)
\(\Leftrightarrow6x=642\)
\(\Leftrightarrow x=107\)
\(b,23+3x=5^6:5^3\)
\(\Leftrightarrow23+3x=125\)
\(\Leftrightarrow3x=102\)
\(\Leftrightarrow x=34\)
Học tốt nhé!
(6x - 39) : 3 = 201
6x - 39 = 201 x 3
6x - 39 = 603
6x = 603 + 39
6x = 642
x = 642 : 6
x = 107
23 + 3x = 56 : 53
23 + 3x = 56-3
23 + 3x = 125
3x = 125 - 23
3x = 102
x = 102 : 3
x = 34
\(\left(6x-39\right):3=201\Rightarrow6x-39=101.3\Rightarrow6x=303+39\Rightarrow x=342:6=57\)
Vậy x = 57
\(23+3x=5^6:5^3\Rightarrow23+3x=125\Rightarrow3x=125-23\Rightarrow x=102:3\Rightarrow x=34\)
Vậy x = 34
k nhaaa
1. a) 6^2 : 4 +2 .5^2= 36 : 4 + 2 . 25 = 9+50=59
b) 2(5.4^2 -18) = 2( 5.16-18) = 2 (80-18) = 2. 62 = 132
2. a) (6x-39):3 = 201
=> 6x - 39 = 201 . 3 = 603
=> 6x = 603+39 = 642
=> x = 642 : 6 = 107
b) 23+3x = 5^6:5^3
23+3x = 125
3x = 125-23 =102
x = 102 : 3 = 34
a) 25 + 3x = 25 - 1
3x = -1
x = -1/3
b) (6x-39):13 = 201
6x-39 = 2613
6x = 2652
x = 442
c) 2x + 35:34 = 510 : 58
2x + 3 = 25
2x = 22
...
Ta có: (6x – 39) : 3 = 201
6x – 39 = 201 . 3
6x – 39 = 603
6x = 603 + 39
6x = 642
x = 642 : 6
x = 107
a) 6x-39:3=201
6x-13=201
6x=201+13
6x=214
sai đề nha
b) 23+3x=125
3x=125-23
3x=102
x=34
c)tương tự nha