Задание
Запиши ответы
Упрости выражения.
- \({309z+(315+124z)-7\,\mathrlap{\,+}}\) \({+ (12z+\,324)=}\) [ ].
- \({(234+114c)-72c+1120\,\mathrlap{\,+}}\) \({ +\,(13c-18)=}\) [ ].
- \({1315+(101d-860)-81d\,\mathrlap{\,+}}\) \({ +\,987=}\) [ ].