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\(23+3x=5^6:5^3\)
\(23+3x=125\)
\(\Rightarrow3x=125-23=102\)
\(\Rightarrow x=102:3=34\)
\(\Rightarrow x=34\)
23 + 3x = 56 : 53
23 + 3x = 53
23 + 3x = 125
3x = 125 - 23
3x = 122
x = 122/3
Hok tốt !
23 + 3x = 56 : 53
23 + 3x = 53
23 + 3x = 125
3x = 125 - 23
3x = 102
x = 102 : 3
x = 34
Chúc bạn học tốt.
\(23+3x=5^6\div5^3\)
\(23+3x=5^{6-3}\)
\(23+3x=5^3\)
\(23+3x=125\)
\(3x=125-23\)
\(3x=102\)
\(x=102\div3\)
\(x=34\)
Sửa:
(6x-39):3=201
6x-39=201.3
6x-39=603
6x=603+39
6x=642
x=107
23+3x=5^6:5^3
23+3x=5^3=125
3x=125-23
3x=102
x=102:3
x=34
a) \(5x+3x+6x=280\)
\(\Leftrightarrow14x=280\)
\(\Leftrightarrow x=20\)
b) \(15x-12x+6x=3^5:3^3\)
\(\Leftrightarrow9x=3^2=9\)
\(\Leftrightarrow x=1\)
c) \(12+6\left(3x-23\right)=6^5:6^3\)
\(\Leftrightarrow12+18x-138=6^2=36\)
\(\Leftrightarrow18x=162\)
\(\Leftrightarrow x=9\)
d) \(115-15\left(6x-23\right)=5^5:5^3\)
\(\Leftrightarrow115-90x+345=5^2=25\)
\(\Leftrightarrow90x=435\)
\(\Leftrightarrow x=\frac{29}{6}\)
a)5x+3x+6x=280
14x = 280
x = 280 : 14
x = 20.
b)15x-12x+6x=35÷33
9x = \(3^2\)
9x = 9
x = 9 : 9
x = 1
c)12+6(3x-23)=65÷63
12 + \(\left[18x-138\right]\)= \(6^2\)
12 + \(\left[18x-138\right]\)= 36
\(\left[18x-138\right]\) = 36 - 12
\(\left[18x-138\right]\) = 24
18x = 24 + 138
18x = 162
x = 162 : 18
x = 9.
Câu d cậu xem lại đề nha!
Hok tốt !
23+5x=5^3
23+3x=125
3x=125-23
3x=102
x=102:5
x=34
23 + 3x = 5^6 : 5^3
=> 23 + 3x = 15625 : 125
=> 23 + 3x = 125
=> 3x = 125 - 23
=> 3x = 102
=> x = 102 : 3
=> x = 34
a
(6x-39):3=201
<<=>6x-39=603
<=>6x=642
<=>107
b
23+3x=5^6:5^3
<=>23+3x=5^3
<=>23+3x=125
<=>3x=102
<=>x=34
c
12.x-33=3^2.3^3
<=>12x-33=243
<=>12x=276
<=>x=23
\(1,2x+3x-4x=\left(-2\right)^3\)
<=>\(x=-8\)
\(2,x-2x=4^2+4^0\)
<=>\(-x=16+1\)
<=>\(-x=17\)
<=>\(x=-17\)
\(3,2^3x-3^2x=|12-21|\)
<=>\(-x=9\)
<=>\(x=-9\)
\(4,x-45=2x+54\)
<=>\(x-2x=54+45\)
<=>\(-x=99\)
<=>\(x=-99\)
\(5,5x-12+23=6^7:6^5\)
<=>\(5x+11=6^2\)
<=>\(5x+11=36\)
<=>\(5x=25\)
<=>\(x=5\)
23+3x=\(5^6:5^3\)
23+3x=\(5^3\)
23+3x=125
3x=125-23
3x=102
x=102:3
x=34
Vậy x=344
23+3x=125
3x=125-23
3x=102
x=102:3
x=34