Вопрос школьника по предмету Математика
60+а=80,100-в=20+10,90-с=50 теңдеуін шешу керек болып тур көмектесесіздерма
Ответ учителя по предмету Математика
1) 60+а=80
а=80-60
а=20
____________
60+20=80
80=80
2) 100-в=20+10
100-в=30
в=100-30
в=70
______________
100-70=30
30=30
3) 90-с=50
с=90-50
с=40
___________
90-40=50
50=50
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