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aflați valoarea lui E=100xa-10xb,stiind ca: 100-b:16+350:7=144

Răspuns :

100-b:16+50=144
100-b:16=144-50
-b:16=94-100
-b:16=-6
B=16x6
B=96
Verificare 100-96:16+50=144
100-6+50=144
94+50=144
144=144