12 + ( x - 4 ) = 0
( x - 4 ) = 0 - 12
x - 4 = -12
x = ( - 12 ) + 4
x = -8.
Vậy x = -8.
\(12+\left(x-4\right)=0\)
\(x-4=0-12\)
\(x-4=-12\)
\(x=-12+4\)
\(x=-8\)
(x-4)= 0-12
(x-4)=-12
x-4=-12
x=-12+4
x=-8
vậy x=-8
x-4bằng 0-12
x-4 bằng -12
x bằng -12+4
x bằng -8
12 + (x - 4) = 0
x - 4 = 0 - 12
x - 4 = -12
x = -12 + 4
x = -8
Vậy x = -8
12+(x-4)=0
12+x-4 =0
(12-4)+x=0
8+x =0
x =0-8
x =-8
12+(x-4) = 0
x-4 = 0-12
x-4 = -12
x = (-12)+4
x = -8
⇒ x = -8