Вопрос школьника по предмету Математика
Выбери уравнения, которые имеют одинаковые корни.
1) 38×7+x=1022
2) 37×8=1022
3)x+38×7=1000+22
4) x-38×7=1022
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Ответ учителя по предмету Математика
1) 38•7+х=1022
266+х=1022
х=1022-266
х=756
2) 37•8=1022
296=1022
3) x+38×7=1000+22
х+266=1022
х=1022-266
х=756
4)х-38•7=1022
х-266=1022
х=266+1022
х=1288
Ответ: одинаковые корни имеют уравнения 1) и 3)
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