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Rezolvati in Z ecuatiile: 

a)8x+3=5x-12

b)23x²-9=16-2x² 

c)3x-xy=11

d)||-3|-2|=1

e)|3x+1|+|3y-1|=3

f)|x-2|+(x-y)² =0

d) (x²-1)²+(x-1)²=0.

Ajutorr!!