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Cum aflu pe a din ecuatia urmatoare:(56:a+16):5+9=13 multumesc mult


Răspuns :

(56:a+16):5=13-9
(56:a+16):5=4
(56:a+16)=5*4
(56:a+16)=20
56:a=20-16
56:a=4
a=56:4=14
(56:a+16):5+9=13
(56:a+16):5=13-9
(56:a+16):5=4
56:a+16=4·5
56:a+16=20
56:a=20-16
56:a=4
a=56:4
a=14