2x + 5 . 110 = 32
4.( 3x - 13 ) = 64 : 23
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\(1\)) \(5-\left(10-x\right)=7\)
\(10-x=5-7\)
\(10-x=-2\)
\(x=10-\left(-2\right)\)
\(x=12\)
\(2\)) \(-32-\left(x-5\right)=0\)
\(x-5=-32-0\)
\(x-5=-32\)
\(x=-32+5\)
\(x=-27\)
a: =>2x^3=58-4=54
=>x^3=27
=>x=3
b; =>(5-x)^5=2^5
=>5-x=2
=>x=3
c: =>(5x-6)^3=4^3
=>5x-6=4
=>5x=10
=>x=2
d: (3x)^3=(2x+1)^3
=>3x=2x+1
=>x=1
1=>2x3=54
=>x3=27 =>x=3
2=>(5-x)5=25
=>5-x=2
=>x=3
3=>(5x-6)3=43
=>5x-6=4
=>5x=10=>x=2
4=>3x=2x+1
=>x=1
a. ( 3x - 4 ) . 23 = 64
( 3x - 4 ) . 2 = 4
3x - 4 = 2
3x = 6
x= 2
b. 2x = 32
2x = 25
x = 5
\(2x+5.11^0=3^2\)
\(\Rightarrow2x+5.1=9\)
\(\Rightarrow2x+5=9\)
\(\Rightarrow2x=9-5\)
\(\Rightarrow2x=4\)
\(\Rightarrow x=4:2\)
\(\Rightarrow x=2\)
Vậy \(x=2\)
b) \(4\left(3x-13\right)=64:2^3\)
\(\Rightarrow4\left(3x-13\right)=64:8\)
\(\Rightarrow4\left(3x-13\right)=8\)
\(\Rightarrow3x-13=8:4\)
\(\Rightarrow3x-13=2\)
\(\Rightarrow3x=2+13\)
\(\Rightarrow3x=15\)
\(\Rightarrow x=15:3\)
\(\Rightarrow x=5\)
Vậy \(x=5\)
1. Ta có: 2x + 5.11^0 = 3^2
=> 2x + 5.1 = 9
=> 2x + 5 = 9
=> 2x = 9 - 5 = 4
=> x = 4 : 2 = 2
Vậy x = 2
2. Ta có: 4. ( 3x - 13 ) = 64 : 2^3
=> 4. ( 3x - 13 ) = 64 : 8 = 8
=> 3x - 13 = 8 : 4 = 2
=> 3x = 2 + 13 = 15
=> x = 15 : 3 = 5
Vậy x =5
Chúc bạn học tốt! ~
a)
\(2x+5.11^0=3^2\)
<=>\(2x+5.1=3^2\)
<=> \(2x=9-5\)
<=> \(2x=4\)
<=> \(x=2\)
Vậy x=2
b)
\(4.\left(3x-13\right)=\dfrac{64}{2^3}\)
<=> \(4\left(3x-13\right)=\dfrac{64}{8}\)
<=> \(4.\left(3x-13\right)=8\)
<=> \(3x-13=2\)
<=> \(3x=15\)
<=> \(x=5\)
Vậy x=5