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determinati valorile lu x daca: 198-99=a a+16=b b+18=c d-9=e x-e=102

Răspuns :

A=198-99 A=99 B=a+16 B=99+16 B=115 C=b+18 C=115+18 C=133 D=9+9 D=18 E=18-9 E=9 X=102+9 X=111