Răspuns :
ecuatiile echivalente au aceeasi solutie
2x-3=0, x=3/2
4x-6=0, 4x=6, x=6/4=3/2
x=1,5, x=15/10=3/2
20x-30=0, 20x=30, x=3/2
2x-3=0, x=3/2
4x-6=0, 4x=6, x=6/4=3/2
x=1,5, x=15/10=3/2
20x-30=0, 20x=30, x=3/2