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[(n-16)×12-20]÷8×10=50

Răspuns :

George120
[(n-16)×12-20]:8×10=50
[(n-16)×12-20]:8=50:10
[(n-16)×12-20]:8=5
[(n-16)×12-20]=5×8
(n-16)×12-20=40
(n-16)×12=40+20
(n-16)×12=60
(n-16)=60:12
n-16=5
n=5+16
n=21
IZŸ1590
[(n-16)x12-20]:8=50:10=5
(n-16)x12-20)=8x5=40
(n-16)x12=40+20=60
n-16=60:12=5
n=16+5
n=21

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