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am nr necunoscut ajutati-ma va rog
[(x-416:4+2)-5+3]×10=2000


Răspuns :

[(x-104+2)x10=2000
x-104+2=2000:10
x-104+2=200
x-104=200-2
x-104=198
x=198+104
x=302
[(x-416:4+2)-5+3]×10=2000
[(x-104+2)-5+3]×10=2000
(x-106)-5+3=2000:10=200
(x-106)-8=200
x-106=200+8=208
x=208+106=314