\(12\left(x-6\right)=4x+12\)
\(12x-12.6=4x+12\)
\(12x-72=4x+12\)
\(12x-4x=72+12\)
\(x\left(12-4\right)=84\)
\(x8=84\)
\(x=84:8\)
\(x=\dfrac{21}{2}\)
Vậy \(x=\dfrac{21}{2}\)
\(12\left(x-6\right)=4x+12\\ 12x-72-4x-12=0\\8x-84=0\\ 8x=84\\ x=\dfrac{84}{8}\\ x=\dfrac{21}{2}\)
Vậy ...
12 . (x - 6) = 4x + 12
➩12x - 72 = 4x + 12
➩12x - 4x = 72 + 12
➩8x = 84
➩x = 21/2