Răspuns:
Explicație pas cu pas:
13×462-19x-866=200
19x=6006-866-200 19x=4940 x=260
Metoda mersului invers
13×462-x×152÷8-866=200 462×
6006-x×152÷8-866=200 13
6006-x×152÷8=200+866 1386
6006-x×152÷8=1066 462__
x×152÷8=6006-1066 6006
x×152÷8=4940
x×152=4940×8 39520÷152=260
x×152=39520 304
x=39520÷152 =912
x=260 912
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13×462-260×152÷8-866=200
6006-39520÷8-866=200
6006-4940-866=200
1066-866=200