2(x-1) +3 = 0
=> 2(x-1)=-3
=> x-1=-3/2
=> x= -3/2 +1=-1/2
vậy x = -1/2
2(x-1)+3=0
2(x-1)=0-3
2(x-1)=-3
(x-1)=-3:2
(x-1)=-1,5
x=-1,5+1
x=-0,5
Vậy x=-0,5
Ta co
2(x-1) + 3 = 0
=) 2(x-1) = -3
=) x-1 = -3/2
=) x = -1/2
2 ( x - 1 ) + 3=0
<=> 2x - 2 + 3 = 0
<=> 2x + 1 = 0
<=> 2x = -1
<=> x =\(\frac{-1}{2}\)