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19+19x[125+7x(12+15x3)-28x2]-100x10​

Răspuns :

19+ 19x[125+7x(12+45)-28x2]-100x10=
19+19( 125+7x57-56)-1000=
19+19(125+399-56)-1000=
19+19(524-56)-1000=
19+19x468-1000=
19+8892-1000=
8911-1000= 7911