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aflati numarul natural x stiind ca a) [(47-x)-14]-25=15 b)(874-193+17)+x=301+297 pls!

Răspuns :

a) [(47-x )-14]-25=15
47-x-14-25=15
8-x=15
x=8-15
x=-7

b) (874-193+17)+x=301+297
698+x=598
x=698-598
x=-100

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