Răspuns :
A)2x-1+3x-4=0
Grupăm termenii
2x+3x-1-4=0
5x-5=0
5x=5
X=5/5=1
B)4x-3-(2x+1)=0
4x-3-2x-1=0
2x-4=0
2x=4
x=4/2=2
C)5(x-2)=4x+2
5x-10=4x+2
5x-4x=2+10
X=12
Grupăm termenii
2x+3x-1-4=0
5x-5=0
5x=5
X=5/5=1
B)4x-3-(2x+1)=0
4x-3-2x-1=0
2x-4=0
2x=4
x=4/2=2
C)5(x-2)=4x+2
5x-10=4x+2
5x-4x=2+10
X=12