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Robertsisabrina
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9xa=207 a:7=56 549-25x5+(19x3+200-99)=
a= a=
a= a=

Răspuns :

[tex]9*a=207 \\ a=207:9 \\ a=23 \\ \\ a:7=56 \\ a=56*7 \\ a=392[/tex]

[tex]549-25*5+(19*3+200-99)= \\ =549-25*5+(57+200-99)= \\ =549-25*5+(257-99)= \\ =549-25*5+158= \\ =549-125+158= \\ =424+158= \\ =582[/tex]

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