Răspuns :
1. x=10
2. 100x+27/100=27/100
200x+27=27
x=0
3. 6x-5=3x+4
3x=9
x=3
4. 4x-1/2=31/2
8x-1=31
x=32/8
x=4
5. x+1/3=5/6
x=(5-2)/6
x=3/6
x= 1/2
2. 100x+27/100=27/100
200x+27=27
x=0
3. 6x-5=3x+4
3x=9
x=3
4. 4x-1/2=31/2
8x-1=31
x=32/8
x=4
5. x+1/3=5/6
x=(5-2)/6
x=3/6
x= 1/2