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rezolvati 34-[6+(12×7-2×a+36)]÷8=20

Răspuns :

Solomiaelena51
34-[6+(84-2a+36)]:8=20 2a=20x8-36+84-6+34 2a=160-36+84-6+34 2a=124+84-6+34 2a=208-6+34 2a=202+34 2a=236 a=236:2 a=118
Bilinschinicol
34-(6+(84-2a+36)):8=20 (6+(120-2a)):8=34-20 6+(120-2a}=14x8 120-2a=112-6 2a=120-106 a=14:2 a=7

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