dau coroana, va rog
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răspuns: 3 rezolva ecuația:
3(2×-1)+3(×+1)-2(×-5)=15(8-×)
6×-6+3×+3-2×-10=120-15×
12×+9×+12×= 120-15×
39×= 120
×= 39÷120
×= 0,325