Упростите выражение и найдите его значение a) 128+(a+472) если a = 147 б) (b+168)-78 если b = 210 - №20389320

Упростите выражение и найдите его значение

a) 128+(a+472) если a = 147

б) (b+168)-78 если b = 210
- Предмет:
  Математика
- Автор:
  peters
- 5 лет назад

Ответы 2

а+128+472=а+600=147+600=747b+168-78=b+90=210+90=300
- Автор:
  maleahaq2l
- 5 лет назад
- 0
128+(А+472)=128+А+472=А+600 , ПРИ А=147147+600=747(в+168)-78=в+168-78=в+90 , при в=210210+90=300
- Автор:
  ellie46
- 5 лет назад
- 0
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