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Saruma2007
a fost răspuns

Determinati valoarea lui a din exercitiul urmator:

546+127-96:3+73x2-(62:a+24:2)-5x11=689

Răspuns :

Robertstinghe
546+127-32+146-(62:a+12)-55=689
673-32+146-(62:a+12)-55=689
641+146-(62:a+12)-55=689
787-(62:a+12)-55=689
787-(62:a+12)=689+55
787-(62:a+12)=744
62:a+12=787-744
62:a+12=43
62:a=43-12
62:a=31
a=62:31
a=2

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