Ответ:
1.Х+25=189:4
Х+25=47, 25
Х=47,25-25
Х=22,25
2.900-х=129-4
900-х=125
Х=900-125
Х=775
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Ответ:
1.Х+25=189:4
Х+25=47, 25
Х=47,25-25
Х=22,25
2.900-х=129-4
900-х=125
Х=900-125
Х=775