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Ajutatima sal detetmin pe a...546+127-96:3+73*2-(62:a+24:2)-51=689

Răspuns :

Devaask
546+127-96:3+73x2-(62:a+24:2)-51=689
546+127-32+146-(62:a+12)-51=689
736-(62:a+12)=689
62:a+12=736-689=47
62:a=35
a=62:35=1,77

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