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Afla numarul necunoscut : a) [a×2+(111-202:2)]×2=160

Răspuns :

Balintstefania
a) [a×2+(111-202÷2)]×2=160
[a×2+(111-202÷2)]=160÷2
a×2+(111-202÷2)=80
a×2+(111-101)=80
a×2+10=80
a×2=80-10
a×2=70
a=70÷2
a=35
a) [a×2+(111-202÷2)]×2=160
[a×2+(111-202÷2)]=160÷2
a×2+(111-202÷2)=80
a×2+(111-101)=80
a×2+10=80
a×2=80-10
a×2=70
a=70÷2
a=35

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