Предмет: Математика, автор: Аноним

решите уравнение (8-2x) + (4x-5)=17  никак не могу понять как это сделать

Ответы

Автор ответа: Shigoyashka
0
8-2х+4х-5=17
-2х+4х=17-8+5
2х=14
х=7
Ответ: х=7
Автор ответа: Giskar
0
4x-2x=17+5-8
Автор ответа: Аноним
0
ребят, прошу объясните
Автор ответа: Shigoyashka
0
Сначала раскрыли скобки. Если перед скобками стоит знак +, то при их раскрытии знаки в скобках не изменяются. Потом слагаемые с неизвестными переносим в левую сторону с противоположным знаком, а известные в правую также с противоположным знаком. Далее вычисления
Автор ответа: Shigoyashka
0
Обращайся)
Автор ответа: julyap
0
(8-2x)+(4x-5)=17\8-2x+4x-5=17\2x=17-8+5\2x=14\x=7
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