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a-b=212 Si a÷b=6r17​

Răspuns :

a-b=212

a÷b=6r17

a=?

b=?

a=6b+17

si inlocuiesti

6b+17=212/-17

6b-b=195

5b=195/÷5

b=39

=> a=b+212

=> a=39+212

a=215

Verificare: 251-39=212