Question

110*Х=9900

y*78=19 734

Answer 1

1) 110*х=9900

х=9900:110

х=90

Проверка

110*90=9900

9900=9900

2) у*78=19 734

У=19 734:78

У=253

Проверка

253*78=19 374

19 374=19 374