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cine ma poate ajuta ka ex asta ?(7×7-6×6+u)-24÷3-2×10=81÷9​

Răspuns :

Răspuns:

(7×7-6×6+u)-24÷3-2×10=81÷9

(49-36+u)-8-20=9

(13+u)-8=20+9

(13+u)-8=29

13+u=29+8

13+u=37

u=37-13

u=24