\(27-\left(2x+1\right)=4\)
\(2x+1=27-4\)
\(2x+1=23\)
\(2x=23-1\)
\(2x=22\)
\(x=22:2\)
\(x=11\)
Vậy x = 11
#HQX
\(27-\left(2x+1\right)=4\)
\(2x+1=23\)
\(2x=22\)
\(x=11\)
27 - (2x+1) = 4
=> 2x+1 = 27 - 4
=> 2x+1 = 23
=> 2x = 23 - 1
=> 2x = 22
=> x = 22:2
=> x = 11
Vậy x = 11