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Determinați numărul a din relația 50-(40:a+3)=27

Răspuns :

50-(40:a+3)=27
40:a+3=50-27
40:a+3=23
40:a=23-3
40:a=20
a=40:20
a=2

50-(40:a+3) =27

(40:a+3)=50-27

(40:a+3)=23

40:a=23-3

40:a=20

a=40:20

a=2


proba

50-(40:2+3)=27

50-(20+3)=27

50-23=27