64 : 2x+5 + 11 = 12
64 : 2x+5 = 1
2x+5 = 64 = 26
=> x + 5 = 6
x = 1
64 : 2x+5+11= 12
=> 64 : 2x+5 = 1
=> 2x+5 = 64 : 1 = 64
=> 2x+5 = 26
=> x+5=6
=> x=1
64:2x+5+11 = 12
=> 2x+5=64:(12 - 11 )
=> 2x+5= 64 = 26
=> x+5=6
=> x =1
\(64\)\(:2^{x+5}+11=12\)
\(\Leftrightarrow2^6:2^{x+5}=12-11\)
\(\Leftrightarrow2^{6-\left(x+5\right)}=1\)
\(\Leftrightarrow2^{6-\left(x+5\right)}=2^0\)
\(\Leftrightarrow6-\left(x+5\right)=0\)
\(\Leftrightarrow x+5=6\)
\(\Leftrightarrow x=1\)
Vậy \(x=1\)
~~~Hok tốt~~~
\(64:2^{x+5}+11=12\)
\(64:2^{x+5}=1\)
\(2^{x+5}=64\)
\(2^{x+5}=2^6\)
\(x+5=6\)
\(x=1\)
=.= hok tốt!!
\(64:2^{x+5}+11=12\)
\(64:2^{x+5}=1\)
\(2^{x+5}=64=2^6\)
\(x+5=6\)
\(x=1\)
mấy bạn giải giúp mình câu (3.4x-5 . 122):13 =12 đc ko ạ
\(64:2^{x+5}+11=12\)
\(\Rightarrow64:2^{x+5}=1\)
\(\Rightarrow2^{x+5}=64\)
\(\Rightarrow2^{x+5}=2^6\)
\(\Rightarrow x+5=6\)
\(\Rightarrow x=1\)
\(64:2^{x+5}+11=12.\)
\(\Leftrightarrow64:2^{x+5}=1\)
\(\Leftrightarrow2^{x+5}=64\)
\(\Leftrightarrow2^{x+5}=2^6\)
\(\Leftrightarrow x+5=6\Leftrightarrow x=1\)