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Va rog!!
1) 4x-1=0
2) 3x+2=0
3) 2x+2=3
4) -5x-1=4
5)4x-1=2x+7


Răspuns :

1 4x=1, x=1/4
2 3x=-2, x=-2/3
3 2x=3-2, 2x=1, x=1/2
4 -5x=4+1, -5x=5, x=-1
5 4x-2x=7+1, 2x=8, x=4